Merge branch '3.15-fixes' into mips-for-linux-next

1 files changed, 4 insertions, 2 deletions

diff --git a/arch/mips/kernel/traps.c b/arch/mips/kernel/traps.c
index 1fd1a0c4f104..51706d6dd5b0 100644
--- a/arch/mips/kernel/traps.c
+++ b/arch/mips/kernel/traps.c
@@ -704,10 +704,12 @@ int process_fpemu_return(int sig, void __user *fault_addr)
                 si.si_addr = fault_addr;
                 si.si_signo = sig;
                 if (sig == SIGSEGV) {
+                        down_read(&current->mm->mmap_sem);
                         if (find_vma(current->mm, (unsigned long)fault_addr))
                                 si.si_code = SEGV_ACCERR;
                         else
                                 si.si_code = SEGV_MAPERR;
+                        up_read(&current->mm->mmap_sem);
                 } else {
                         si.si_code = BUS_ADRERR;
                 }
@@ -1537,7 +1539,7 @@ asmlinkage void cache_parity_error(void)
                reg_val & (1<<30) ? "secondary" : "primary",
                reg_val & (1<<31) ? "data" : "insn");
         if (cpu_has_mips_r2 &&
-            ((current_cpu_data.processor_id && 0xff0000) == PRID_COMP_MIPS)) {
+            ((current_cpu_data.processor_id & 0xff0000) == PRID_COMP_MIPS)) {
                 pr_err("Error bits: %s%s%s%s%s%s%s%s\n",
                         reg_val & (1<<29) ? "ED " : "",
                         reg_val & (1<<28) ? "ET " : "",
@@ -1577,7 +1579,7 @@ asmlinkage void do_ftlb(void)
 
         /* For the moment, report the problem and hang. */
         if (cpu_has_mips_r2 &&
-            ((current_cpu_data.processor_id && 0xff0000) == PRID_COMP_MIPS)) {
+            ((current_cpu_data.processor_id & 0xff0000) == PRID_COMP_MIPS)) {
                 pr_err("FTLB error exception, cp0_ecc=0x%08x:\n",
                        read_c0_ecc());
                 pr_err("cp0_errorepc == %0*lx\n", field, read_c0_errorepc());