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[IA64] unsigned cannot be less than 0 in sn_hwperf_ioctl()

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struct sn_hwperf_ioctl_args member arg (u64) cannot be less than 0.

Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Tony Luck <tony.luck@intel.com>
This commit is contained in:
Roel Kluin 2009-10-10 22:21:59 +02:00 committed by Tony Luck
parent 29e4e025be
commit dec1798f81
1 changed files with 4 additions and 3 deletions
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7
arch/ia64/sn/kernel/sn2/sn_hwperf.c
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@ -786,17 +786,18 @@ sn_hwperf_ioctl(struct inode *in, struct file *fp, u32 op, unsigned long arg)
break;
case SN_HWPERF_GET_OBJ_NODE:
if (a.sz != sizeof(u64) || a.arg < 0) {
i = a.arg;
if (a.sz != sizeof(u64) || i < 0) {
r = -EINVAL;
goto error;
}
if ((r = sn_hwperf_enum_objects(&nobj, &objs)) == 0) {
if (a.arg >= nobj) {
if (i >= nobj) {
r = -EINVAL;
vfree(objs);
goto error;
}
if (objs[(i = a.arg)].id != a.arg) {
if (objs[i].id != a.arg) {
for (i = 0; i < nobj; i++) {
if (objs[i].id == a.arg)
break;