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authorLinus Torvalds <torvalds@linux-foundation.org>2009-10-31 15:14:56 -0400
committerLinus Torvalds <torvalds@linux-foundation.org>2009-10-31 15:14:56 -0400
commit7d531a7e519406c4bb2501a66e3da5ba39280739 (patch)
treec849a010de055dd77b020e40b8fc5c71303ee77e /drivers/s390
parenta80a66caf8110fc33af8013353fe0da0ae553a13 (diff)
parentb3dcf3de8e4d71d79235fc67b6c5def6506c27f8 (diff)
Merge branch 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6
* 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6: [S390] smp: fix sigp sense handling [S390] smp: fix sigp stop handling [S390] cputime: fix overflow on 31 bit systems [S390] call home: fix string length handling [S390] call home: fix error handling in init function [S390] smp: fix prefix handling of offlined cpus [S390] s/r: cmm resume fix [S390] call home: fix local buffer usage in proc handler
Diffstat (limited to 'drivers/s390')
-rw-r--r--drivers/s390/char/sclp_async.c47
-rw-r--r--drivers/s390/net/smsgiucv.c7
2 files changed, 24 insertions, 30 deletions
diff --git a/drivers/s390/char/sclp_async.c b/drivers/s390/char/sclp_async.c
index a4f68e5b9c96..b44462a6c6d3 100644
--- a/drivers/s390/char/sclp_async.c
+++ b/drivers/s390/char/sclp_async.c
@@ -26,7 +26,6 @@ static struct sclp_async_sccb *sccb;
26static int sclp_async_send_wait(char *message); 26static int sclp_async_send_wait(char *message);
27static struct ctl_table_header *callhome_sysctl_header; 27static struct ctl_table_header *callhome_sysctl_header;
28static DEFINE_SPINLOCK(sclp_async_lock); 28static DEFINE_SPINLOCK(sclp_async_lock);
29static char nodename[64];
30#define SCLP_NORMAL_WRITE 0x00 29#define SCLP_NORMAL_WRITE 0x00
31 30
32struct async_evbuf { 31struct async_evbuf {
@@ -52,9 +51,10 @@ static struct sclp_register sclp_async_register = {
52static int call_home_on_panic(struct notifier_block *self, 51static int call_home_on_panic(struct notifier_block *self,
53 unsigned long event, void *data) 52 unsigned long event, void *data)
54{ 53{
55 strncat(data, nodename, strlen(nodename)); 54 strncat(data, init_utsname()->nodename,
56 sclp_async_send_wait(data); 55 sizeof(init_utsname()->nodename));
57 return NOTIFY_DONE; 56 sclp_async_send_wait(data);
57 return NOTIFY_DONE;
58} 58}
59 59
60static struct notifier_block call_home_panic_nb = { 60static struct notifier_block call_home_panic_nb = {
@@ -68,15 +68,14 @@ static int proc_handler_callhome(struct ctl_table *ctl, int write,
68{ 68{
69 unsigned long val; 69 unsigned long val;
70 int len, rc; 70 int len, rc;
71 char buf[2]; 71 char buf[3];
72 72
73 if (!*count | (*ppos && !write)) { 73 if (!*count || (*ppos && !write)) {
74 *count = 0; 74 *count = 0;
75 return 0; 75 return 0;
76 } 76 }
77 if (!write) { 77 if (!write) {
78 len = sprintf(buf, "%d\n", callhome_enabled); 78 len = snprintf(buf, sizeof(buf), "%d\n", callhome_enabled);
79 buf[len] = '\0';
80 rc = copy_to_user(buffer, buf, sizeof(buf)); 79 rc = copy_to_user(buffer, buf, sizeof(buf));
81 if (rc != 0) 80 if (rc != 0)
82 return -EFAULT; 81 return -EFAULT;
@@ -171,39 +170,29 @@ static int __init sclp_async_init(void)
171 rc = sclp_register(&sclp_async_register); 170 rc = sclp_register(&sclp_async_register);
172 if (rc) 171 if (rc)
173 return rc; 172 return rc;
174 callhome_sysctl_header = register_sysctl_table(kern_dir_table); 173 rc = -EOPNOTSUPP;
175 if (!callhome_sysctl_header) { 174 if (!(sclp_async_register.sclp_receive_mask & EVTYP_ASYNC_MASK))
176 rc = -ENOMEM;
177 goto out_sclp;
178 }
179 if (!(sclp_async_register.sclp_receive_mask & EVTYP_ASYNC_MASK)) {
180 rc = -EOPNOTSUPP;
181 goto out_sclp; 175 goto out_sclp;
182 }
183 rc = -ENOMEM; 176 rc = -ENOMEM;
177 callhome_sysctl_header = register_sysctl_table(kern_dir_table);
178 if (!callhome_sysctl_header)
179 goto out_sclp;
184 request = kzalloc(sizeof(struct sclp_req), GFP_KERNEL); 180 request = kzalloc(sizeof(struct sclp_req), GFP_KERNEL);
185 if (!request)
186 goto out_sys;
187 sccb = (struct sclp_async_sccb *) get_zeroed_page(GFP_KERNEL | GFP_DMA); 181 sccb = (struct sclp_async_sccb *) get_zeroed_page(GFP_KERNEL | GFP_DMA);
188 if (!sccb) 182 if (!request || !sccb)
189 goto out_mem; 183 goto out_mem;
190 rc = atomic_notifier_chain_register(&panic_notifier_list, 184 rc = atomic_notifier_chain_register(&panic_notifier_list,
191 &call_home_panic_nb); 185 &call_home_panic_nb);
192 if (rc) 186 if (!rc)
193 goto out_mem; 187 goto out;
194
195 strncpy(nodename, init_utsname()->nodename, 64);
196 return 0;
197
198out_mem: 188out_mem:
199 kfree(request); 189 kfree(request);
200 free_page((unsigned long) sccb); 190 free_page((unsigned long) sccb);
201out_sys:
202 unregister_sysctl_table(callhome_sysctl_header); 191 unregister_sysctl_table(callhome_sysctl_header);
203out_sclp: 192out_sclp:
204 sclp_unregister(&sclp_async_register); 193 sclp_unregister(&sclp_async_register);
194out:
205 return rc; 195 return rc;
206
207} 196}
208module_init(sclp_async_init); 197module_init(sclp_async_init);
209 198
diff --git a/drivers/s390/net/smsgiucv.c b/drivers/s390/net/smsgiucv.c
index 102000d1af6f..3012355f8304 100644
--- a/drivers/s390/net/smsgiucv.c
+++ b/drivers/s390/net/smsgiucv.c
@@ -158,7 +158,12 @@ static int smsg_pm_restore_thaw(struct device *dev)
158 smsg_path->flags = 0; 158 smsg_path->flags = 0;
159 rc = iucv_path_connect(smsg_path, &smsg_handler, "*MSG ", 159 rc = iucv_path_connect(smsg_path, &smsg_handler, "*MSG ",
160 NULL, NULL, NULL); 160 NULL, NULL, NULL);
161 printk(KERN_ERR "iucv_path_connect returned with rc %i\n", rc); 161#ifdef CONFIG_PM_DEBUG
162 if (rc)
163 printk(KERN_ERR
164 "iucv_path_connect returned with rc %i\n", rc);
165#endif
166 cpcmd("SET SMSG IUCV", NULL, 0, NULL);
162 } 167 }
163 return 0; 168 return 0;
164} 169}