UbiquitousOS
/
OpenCloudOS-Kernel
mirror of https://gitee.com/OpenCloudOS/OpenCloudOS-Kernel.git
11
0
Fork 0
Code Issues Projects Releases Wiki Activity

sh: Fix up uninitialized variable use caught by gcc 4.4. 

In the unaligned kernel exception fixup case the printk() was ordered
before the copy_from_user(), resulting in a nonsensical instruction
value. This fixes up the ordering properly.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
This commit is contained in:
Paul Mundt 2009-09-24 17:48:15 +09:00
parent 23c4c82171
commit 40258ee97d
1 changed files with 6 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

12
arch/sh/kernel/traps_32.c
View File

@ -678,12 +678,6 @@ uspace_segv:
} else {
se_sys += 1;
if (se_kernmode_warn)
printk(KERN_NOTICE "Unaligned kernel access "
"on behalf of \"%s\" pid=%d pc=0x%p ins=0x%04hx\n",
current->comm, current->pid, (void *)regs->pc,
instruction);
if (regs->pc & 1)
die("unaligned program counter", regs, error_code);
@ -697,6 +691,12 @@ uspace_segv:
die("insn faulting in do_address_error", regs, 0);
}
if (se_kernmode_warn)
printk(KERN_NOTICE "Unaligned kernel access "
"on behalf of \"%s\" pid=%d pc=0x%p ins=0x%04hx\n",
current->comm, current->pid, (void *)regs->pc,
instruction);
handle_unaligned_access(instruction, regs,
&user_mem_access, 0);
set_fs(oldfs);