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authorGeorgi Djakov <georgi.djakov@linaro.org>2020-01-06 20:27:46 +0300
committerGeorgi Djakov <georgi.djakov@linaro.org>2020-01-07 10:30:09 +0300
commit7d7899c5297be8cd6095bcddecbbedccb34dd161 (patch)
tree3e802918d2850dc988738c9f17a285c403068c12 /drivers/interconnect
parent2c5127a7fa0369801e623e8c6e58193f86d31d73 (diff)
downloadlinux-7d7899c5297be8cd6095bcddecbbedccb34dd161.tar.xz
interconnect: Check for valid path in icc_set_bw()
Use IS_ERR() to ensure that the path passed to icc_set_bw() is valid. Reviewed-by: Evan Green <evgreen@chromium.org> Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org> Signed-off-by: Georgi Djakov <georgi.djakov@linaro.org>
Diffstat (limited to 'drivers/interconnect')
-rw-r--r--drivers/interconnect/core.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/interconnect/core.c b/drivers/interconnect/core.c
index 10dde5df9251..f277e467156f 100644
--- a/drivers/interconnect/core.c
+++ b/drivers/interconnect/core.c
@@ -495,9 +495,12 @@ int icc_set_bw(struct icc_path *path, u32 avg_bw, u32 peak_bw)
size_t i;
int ret;
- if (!path || !path->num_nodes)
+ if (!path)
return 0;
+ if (WARN_ON(IS_ERR(path) || !path->num_nodes))
+ return -EINVAL;
+
mutex_lock(&icc_lock);
old_avg = path->reqs[0].avg_bw;