kernel/sys.c: whitespace fixes

Fix minor errors and warning messages in kernel/sys.c.  These errors were
reported by checkpatch while working with some modifications in sys.c
file.  Fixing this first will help me to improve my further patches.

ERROR: trailing whitespace - 9
ERROR: do not use assignment in if condition - 4
ERROR: spaces required around that '?' (ctx:VxO) - 10
ERROR: switch and case should be at the same indent - 3

total 26 errors & 3 warnings fixed.

Signed-off-by: vishnu.ps <vishnu.ps@samsung.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 137 insertions, 128 deletions

diff --git a/kernel/sys.c b/kernel/sys.c
index df692fbf1e79..037fd76bdc76 100644
--- a/kernel/sys.c
+++ b/kernel/sys.c
@@ -62,28 +62,28 @@
 #include <asm/unistd.h>
 
 #ifndef SET_UNALIGN_CTL
-# define SET_UNALIGN_CTL(a,b)   (-EINVAL)
+# define SET_UNALIGN_CTL(a, b)  (-EINVAL)
 #endif
 #ifndef GET_UNALIGN_CTL
-# define GET_UNALIGN_CTL(a,b)   (-EINVAL)
+# define GET_UNALIGN_CTL(a, b)  (-EINVAL)
 #endif
 #ifndef SET_FPEMU_CTL
-# define SET_FPEMU_CTL(a,b)     (-EINVAL)
+# define SET_FPEMU_CTL(a, b)    (-EINVAL)
 #endif
 #ifndef GET_FPEMU_CTL
-# define GET_FPEMU_CTL(a,b)     (-EINVAL)
+# define GET_FPEMU_CTL(a, b)    (-EINVAL)
 #endif
 #ifndef SET_FPEXC_CTL
-# define SET_FPEXC_CTL(a,b)     (-EINVAL)
+# define SET_FPEXC_CTL(a, b)    (-EINVAL)
 #endif
 #ifndef GET_FPEXC_CTL
-# define GET_FPEXC_CTL(a,b)     (-EINVAL)
+# define GET_FPEXC_CTL(a, b)    (-EINVAL)
 #endif
 #ifndef GET_ENDIAN
-# define GET_ENDIAN(a,b)        (-EINVAL)
+# define GET_ENDIAN(a, b)       (-EINVAL)
 #endif
 #ifndef SET_ENDIAN
-# define SET_ENDIAN(a,b)        (-EINVAL)
+# define SET_ENDIAN(a, b)       (-EINVAL)
 #endif
 #ifndef GET_TSC_CTL
 # define GET_TSC_CTL(a)         (-EINVAL)
@@ -182,39 +182,40 @@ SYSCALL_DEFINE3(setpriority, int, which, int, who, int, niceval)
         rcu_read_lock();
         read_lock(&tasklist_lock);
         switch (which) {
-                case PRIO_PROCESS:
-                        if (who)
-                                p = find_task_by_vpid(who);
-                        else
-                                p = current;
-                        if (p)
-                                error = set_one_prio(p, niceval, error);
-                        break;
-                case PRIO_PGRP:
-                        if (who)
-                                pgrp = find_vpid(who);
-                        else
-                                pgrp = task_pgrp(current);
-                        do_each_pid_thread(pgrp, PIDTYPE_PGID, p) {
-                                error = set_one_prio(p, niceval, error);
-                        } while_each_pid_thread(pgrp, PIDTYPE_PGID, p);
-                        break;
-                case PRIO_USER:
-                        uid = make_kuid(cred->user_ns, who);
-                        user = cred->user;
-                        if (!who)
-                                uid = cred->uid;
-                        else if (!uid_eq(uid, cred->uid) &&
-                                 !(user = find_user(uid)))
+        case PRIO_PROCESS:
+                if (who)
+                        p = find_task_by_vpid(who);
+                else
+                        p = current;
+                if (p)
+                        error = set_one_prio(p, niceval, error);
+                break;
+        case PRIO_PGRP:
+                if (who)
+                        pgrp = find_vpid(who);
+                else
+                        pgrp = task_pgrp(current);
+                do_each_pid_thread(pgrp, PIDTYPE_PGID, p) {
+                        error = set_one_prio(p, niceval, error);
+                } while_each_pid_thread(pgrp, PIDTYPE_PGID, p);
+                break;
+        case PRIO_USER:
+                uid = make_kuid(cred->user_ns, who);
+                user = cred->user;
+                if (!who)
+                        uid = cred->uid;
+                else if (!uid_eq(uid, cred->uid)) {
+                        user = find_user(uid);
+                        if (!user)
                                 goto out_unlock;        /* No processes for this user */
-
-                        do_each_thread(g, p) {
-                                if (uid_eq(task_uid(p), uid))
-                                        error = set_one_prio(p, niceval, error);
-                        } while_each_thread(g, p);
-                        if (!uid_eq(uid, cred->uid))
-                                free_uid(user);         /* For find_user() */
-                        break;
+                }
+                do_each_thread(g, p) {
+                        if (uid_eq(task_uid(p), uid))
+                                error = set_one_prio(p, niceval, error);
+                } while_each_thread(g, p);
+                if (!uid_eq(uid, cred->uid))
+                        free_uid(user);         /* For find_user() */
+                break;
         }
 out_unlock:
         read_unlock(&tasklist_lock);
@@ -244,47 +245,48 @@ SYSCALL_DEFINE2(getpriority, int, which, int, who)
         rcu_read_lock();
         read_lock(&tasklist_lock);
         switch (which) {
-                case PRIO_PROCESS:
-                        if (who)
-                                p = find_task_by_vpid(who);
-                        else
-                                p = current;
-                        if (p) {
+        case PRIO_PROCESS:
+                if (who)
+                        p = find_task_by_vpid(who);
+                else
+                        p = current;
+                if (p) {
+                        niceval = nice_to_rlimit(task_nice(p));
+                        if (niceval > retval)
+                                retval = niceval;
+                }
+                break;
+        case PRIO_PGRP:
+                if (who)
+                        pgrp = find_vpid(who);
+                else
+                        pgrp = task_pgrp(current);
+                do_each_pid_thread(pgrp, PIDTYPE_PGID, p) {
+                        niceval = nice_to_rlimit(task_nice(p));
+                        if (niceval > retval)
+                                retval = niceval;
+                } while_each_pid_thread(pgrp, PIDTYPE_PGID, p);
+                break;
+        case PRIO_USER:
+                uid = make_kuid(cred->user_ns, who);
+                user = cred->user;
+                if (!who)
+                        uid = cred->uid;
+                else if (!uid_eq(uid, cred->uid)) {
+                        user = find_user(uid);
+                        if (!user)
+                                goto out_unlock;        /* No processes for this user */
+                }
+                do_each_thread(g, p) {
+                        if (uid_eq(task_uid(p), uid)) {
                                 niceval = nice_to_rlimit(task_nice(p));
                                 if (niceval > retval)
                                         retval = niceval;
                         }
-                        break;
-                case PRIO_PGRP:
-                        if (who)
-                                pgrp = find_vpid(who);
-                        else
-                                pgrp = task_pgrp(current);
-                        do_each_pid_thread(pgrp, PIDTYPE_PGID, p) {
-                                niceval = nice_to_rlimit(task_nice(p));
-                                if (niceval > retval)
-                                        retval = niceval;
-                        } while_each_pid_thread(pgrp, PIDTYPE_PGID, p);
-                        break;
-                case PRIO_USER:
-                        uid = make_kuid(cred->user_ns, who);
-                        user = cred->user;
-                        if (!who)
-                                uid = cred->uid;
-                        else if (!uid_eq(uid, cred->uid) &&
-                                 !(user = find_user(uid)))
-                                goto out_unlock;        /* No processes for this user */
-
-                        do_each_thread(g, p) {
-                                if (uid_eq(task_uid(p), uid)) {
-                                        niceval = nice_to_rlimit(task_nice(p));
-                                        if (niceval > retval)
-                                                retval = niceval;
-                                }
-                        } while_each_thread(g, p);
-                        if (!uid_eq(uid, cred->uid))
-                                free_uid(user);         /* for find_user() */
-                        break;
+                } while_each_thread(g, p);
+                if (!uid_eq(uid, cred->uid))
+                        free_uid(user);         /* for find_user() */
+                break;
         }
 out_unlock:
         read_unlock(&tasklist_lock);
@@ -306,7 +308,7 @@ out_unlock:
  *
  * The general idea is that a program which uses just setregid() will be
  * 100% compatible with BSD.  A program which uses just setgid() will be
- * 100% compatible with POSIX with saved IDs. 
+ * 100% compatible with POSIX with saved IDs.
  *
  * SMP: There are not races, the GIDs are checked only by filesystem
  *      operations (as far as semantic preservation is concerned).
@@ -364,7 +366,7 @@ error:
 }
 
 /*
- * setgid() is implemented like SysV w/ SAVED_IDS 
+ * setgid() is implemented like SysV w/ SAVED_IDS
  *
  * SMP: Same implicit races as above.
  */
@@ -442,7 +444,7 @@ static int set_user(struct cred *new)
  *
  * The general idea is that a program which uses just setreuid() will be
  * 100% compatible with BSD.  A program which uses just setuid() will be
- * 100% compatible with POSIX with saved IDs. 
+ * 100% compatible with POSIX with saved IDs.
  */
 SYSCALL_DEFINE2(setreuid, uid_t, ruid, uid_t, euid)
 {
@@ -503,17 +505,17 @@ error:
         abort_creds(new);
         return retval;
 }
-                
+
 /*
- * setuid() is implemented like SysV with SAVED_IDS 
- * 
+ * setuid() is implemented like SysV with SAVED_IDS
+ *
  * Note that SAVED_ID's is deficient in that a setuid root program
- * like sendmail, for example, cannot set its uid to be a normal 
+ * like sendmail, for example, cannot set its uid to be a normal
  * user and then switch back, because if you're root, setuid() sets
  * the saved uid too.  If you don't like this, blame the bright people
  * in the POSIX committee and/or USG.  Note that the BSD-style setreuid()
  * will allow a root program to temporarily drop privileges and be able to
- * regain them by swapping the real and effective uid.  
+ * regain them by swapping the real and effective uid.
  */
 SYSCALL_DEFINE1(setuid, uid_t, uid)
 {
@@ -637,10 +639,12 @@ SYSCALL_DEFINE3(getresuid, uid_t __user *, ruidp, uid_t __user *, euidp, uid_t _
         euid = from_kuid_munged(cred->user_ns, cred->euid);
         suid = from_kuid_munged(cred->user_ns, cred->suid);
 
-        if (!(retval   = put_user(ruid, ruidp)) &&
-            !(retval   = put_user(euid, euidp)))
-                retval = put_user(suid, suidp);
-
+        retval = put_user(ruid, ruidp);
+        if (!retval) {
+                retval = put_user(euid, euidp);
+                if (!retval)
+                        return put_user(suid, suidp);
+        }
         return retval;
 }
 
@@ -709,9 +713,12 @@ SYSCALL_DEFINE3(getresgid, gid_t __user *, rgidp, gid_t __user *, egidp, gid_t _
         egid = from_kgid_munged(cred->user_ns, cred->egid);
         sgid = from_kgid_munged(cred->user_ns, cred->sgid);
 
-        if (!(retval   = put_user(rgid, rgidp)) &&
-            !(retval   = put_user(egid, egidp)))
-                retval = put_user(sgid, sgidp);
+        retval = put_user(rgid, rgidp);
+        if (!retval) {
+                retval = put_user(egid, egidp);
+                if (!retval)
+                        retval = put_user(sgid, sgidp);
+        }
 
         return retval;
 }
@@ -1284,7 +1291,6 @@ SYSCALL_DEFINE2(getrlimit, unsigned int, resource, struct rlimit __user *, rlim)
 /*
  *      Back compatibility for getrlimit. Needed for some apps.
  */
- 
 SYSCALL_DEFINE2(old_getrlimit, unsigned int, resource,
                 struct rlimit __user *, rlim)
 {
@@ -1299,7 +1305,7 @@ SYSCALL_DEFINE2(old_getrlimit, unsigned int, resource,
                 x.rlim_cur = 0x7FFFFFFF;
         if (x.rlim_max > 0x7FFFFFFF)
                 x.rlim_max = 0x7FFFFFFF;
-        return copy_to_user(rlim, &x, sizeof(x))?-EFAULT:0;
+        return copy_to_user(rlim, &x, sizeof(x)) ? -EFAULT : 0;
 }
 
 #endif
@@ -1527,7 +1533,7 @@ static void k_getrusage(struct task_struct *p, int who, struct rusage *r)
         cputime_t tgutime, tgstime, utime, stime;
         unsigned long maxrss = 0;
 
-        memset((char *) r, 0, sizeof *r);
+        memset((char *)r, 0, sizeof (*r));
         utime = stime = 0;
 
         if (who == RUSAGE_THREAD) {
@@ -1541,41 +1547,41 @@ static void k_getrusage(struct task_struct *p, int who, struct rusage *r)
                 return;
 
         switch (who) {
-                case RUSAGE_BOTH:
-                case RUSAGE_CHILDREN:
-                        utime = p->signal->cutime;
-                        stime = p->signal->cstime;
-                        r->ru_nvcsw = p->signal->cnvcsw;
-                        r->ru_nivcsw = p->signal->cnivcsw;
-                        r->ru_minflt = p->signal->cmin_flt;
-                        r->ru_majflt = p->signal->cmaj_flt;
-                        r->ru_inblock = p->signal->cinblock;
-                        r->ru_oublock = p->signal->coublock;
-                        maxrss = p->signal->cmaxrss;
-
-                        if (who == RUSAGE_CHILDREN)
-                                break;
-
-                case RUSAGE_SELF:
-                        thread_group_cputime_adjusted(p, &tgutime, &tgstime);
-                        utime += tgutime;
-                        stime += tgstime;
-                        r->ru_nvcsw += p->signal->nvcsw;
-                        r->ru_nivcsw += p->signal->nivcsw;
-                        r->ru_minflt += p->signal->min_flt;
-                        r->ru_majflt += p->signal->maj_flt;
-                        r->ru_inblock += p->signal->inblock;
-                        r->ru_oublock += p->signal->oublock;
-                        if (maxrss < p->signal->maxrss)
-                                maxrss = p->signal->maxrss;
-                        t = p;
-                        do {
-                                accumulate_thread_rusage(t, r);
-                        } while_each_thread(p, t);
+        case RUSAGE_BOTH:
+        case RUSAGE_CHILDREN:
+                utime = p->signal->cutime;
+                stime = p->signal->cstime;
+                r->ru_nvcsw = p->signal->cnvcsw;
+                r->ru_nivcsw = p->signal->cnivcsw;
+                r->ru_minflt = p->signal->cmin_flt;
+                r->ru_majflt = p->signal->cmaj_flt;
+                r->ru_inblock = p->signal->cinblock;
+                r->ru_oublock = p->signal->coublock;
+                maxrss = p->signal->cmaxrss;
+
+                if (who == RUSAGE_CHILDREN)
                         break;
 
-                default:
-                        BUG();
+        case RUSAGE_SELF:
+                thread_group_cputime_adjusted(p, &tgutime, &tgstime);
+                utime += tgutime;
+                stime += tgstime;
+                r->ru_nvcsw += p->signal->nvcsw;
+                r->ru_nivcsw += p->signal->nivcsw;
+                r->ru_minflt += p->signal->min_flt;
+                r->ru_majflt += p->signal->maj_flt;
+                r->ru_inblock += p->signal->inblock;
+                r->ru_oublock += p->signal->oublock;
+                if (maxrss < p->signal->maxrss)
+                        maxrss = p->signal->maxrss;
+                t = p;
+                do {
+                        accumulate_thread_rusage(t, r);
+                } while_each_thread(p, t);
+                break;
+
+        default:
+                BUG();
         }
         unlock_task_sighand(p, &flags);
 
@@ -1585,6 +1591,7 @@ out:
 
         if (who != RUSAGE_CHILDREN) {
                 struct mm_struct *mm = get_task_mm(p);
+
                 if (mm) {
                         setmax_mm_hiwater_rss(&maxrss, mm);
                         mmput(mm);
@@ -1596,6 +1603,7 @@ out:
 int getrusage(struct task_struct *p, int who, struct rusage __user *ru)
 {
         struct rusage r;
+
         k_getrusage(p, who, &r);
         return copy_to_user(ru, &r, sizeof(r)) ? -EFAULT : 0;
 }
@@ -2209,6 +2217,7 @@ SYSCALL_DEFINE3(getcpu, unsigned __user *, cpup, unsigned __user *, nodep,
 {
         int err = 0;
         int cpu = raw_smp_processor_id();
+
         if (cpup)
                 err |= put_user(cpu, cpup);
         if (nodep)