evie/android_kernel_oneplus_msm8998
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msm: ADSPRPC: verify and initialize some variables

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Verify cid variable before accessing it and
initialize invoket variable before bailing out.

Change-Id: Idec133bf8ba1a000b83f92bb567f0b75bbdab340
Signed-off-by: Tharun Kumar Merugu <mtharu@codeaurora.org>
This commit is contained in:
Tharun Kumar Merugu 2017-05-12 12:05:11 +05:30 • committed by Gerrit - the friendly Code Review server
parent ae4d972f07
commit 94e69df401
1 changed files with 6 additions and 5 deletions
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11
drivers/char/adsprpc.c
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@ -1488,14 +1488,15 @@ static int fastrpc_internal_invoke(struct fastrpc_file *fl, uint32_t mode,
int err = 0;
struct timespec invoket;
if (fl->profile)
getnstimeofday(&invoket);
VERIFY(err, fl->sctx);
if (err)
goto bail;
VERIFY(err, fl->cid >= 0 && fl->cid < NUM_CHANNELS);
if (err)
goto bail;
if (fl->profile)
getnstimeofday(&invoket);
if (!kernel) {
VERIFY(err, 0 == context_restore_interrupted(fl, inv,
&ctx));
@ -2440,6 +2441,9 @@ static int fastrpc_channel_open(struct fastrpc_file *fl)
if (err)
goto bail;
cid = fl->cid;
VERIFY(err, cid >= 0 && cid < NUM_CHANNELS);
if (err)
goto bail;
if (me->channel[cid].ssrcount !=
me->channel[cid].prevssrcount) {
if (!me->channel[cid].issubsystemup) {
@ -2448,9 +2452,6 @@ static int fastrpc_channel_open(struct fastrpc_file *fl)
goto bail;
}
}
VERIFY(err, cid >= 0 && cid < NUM_CHANNELS);
if (err)
goto bail;
fl->ssrcount = me->channel[cid].ssrcount;
if ((kref_get_unless_zero(&me->channel[cid].kref) == 0) ||
(me->channel[cid].chan == 0)) {