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| author | Keerthy <j-keerthy@ti.com> | 2017-07-31 07:31:36 +0300 |
|---|---|---|
| committer | Arnd Bergmann <arnd@arndb.de> | 2017-08-21 10:19:50 +0300 |
| commit | 4459398b6d9e3055ced5de9820364b3bdd79ac25 (patch) | |
| tree | 0abf5181b2fe16ecd19229382d61f5d413dcf48c /drivers/soc | |
| parent | 4dd6a9973b8aaffac4bf37c5bb70e8eae5a7afb4 (diff) | |
| download | linux-4459398b6d9e3055ced5de9820364b3bdd79ac25.tar.xz | |
soc: ti: knav: Add a NULL pointer check for kdev in knav_pool_create
knav_pool_create is an exported function. In the event of a call
before knav_queue_probe, we encounter a NULL pointer dereference
in the following line. Hence return -EPROBE_DEFER to the caller till
the kdev pointer is non-NULL.
Signed-off-by: Keerthy <j-keerthy@ti.com>
Acked-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to 'drivers/soc')
| -rw-r--r-- | drivers/soc/ti/knav_qmss_queue.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/soc/ti/knav_qmss_queue.c b/drivers/soc/ti/knav_qmss_queue.c index 279e7c5551dd..39225de9d7f1 100644 --- a/drivers/soc/ti/knav_qmss_queue.c +++ b/drivers/soc/ti/knav_qmss_queue.c @@ -745,6 +745,9 @@ void *knav_pool_create(const char *name, bool slot_found; int ret; + if (!kdev) + return ERR_PTR(-EPROBE_DEFER); + if (!kdev->dev) return ERR_PTR(-ENODEV); |