mirrors
/
linux-stable
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
1
0
Fork 0
Code Issues Releases Wiki Activity

[IA64] sn2: add missing put_cpu() 

sn_hwperf_op_cpu() uses get_cpu() but is missing a corresponding put_cpu().

Reported-by: Thomas Meyer <thomas@m3y3r.de>
Acked-by: Jack Steiner <steiner@sgi.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
This commit is contained in:
Tony Luck 2011-08-11 09:27:54 -07:00
parent 322a8b0340
commit d5d4e02874
1 changed files with 8 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

12
arch/ia64/sn/kernel/sn2/sn_hwperf.c
View File

@ -615,11 +615,15 @@ static int sn_hwperf_op_cpu(struct sn_hwperf_op_info *op_info)
}
}
if (cpu == SN_HWPERF_ARG_ANY_CPU || cpu == get_cpu()) {
/* don't care, or already on correct cpu */
if (cpu == SN_HWPERF_ARG_ANY_CPU) {
/* don't care which cpu */
sn_hwperf_call_sal(op_info);
}
else {
} else if (cpu == get_cpu()) {
/* already on correct cpu */
sn_hwperf_call_sal(op_info);
put_cpu();
} else {
put_cpu();
if (use_ipi) {
/* use an interprocessor interrupt to call SAL */
smp_call_function_single(cpu, sn_hwperf_call_sal,