From: Andy Shevchenko <ext-andriy.shevchenko@xxxxxxxxx>
Check input value before dereferencing it.
Signed-off-by: Andy Shevchenko <ext-andriy.shevchenko@xxxxxxxxx>
---
drivers/dsp/bridge/wmd/tiomap3430.c | 7 ++++++-
1 files changed, 6 insertions(+), 1 deletions(-)
diff --git a/drivers/dsp/bridge/wmd/tiomap3430.c b/drivers/dsp/bridge/wmd/tiomap3430.c
index db48c49..4cb78c7 100644
--- a/drivers/dsp/bridge/wmd/tiomap3430.c
+++ b/drivers/dsp/bridge/wmd/tiomap3430.c
@@ -1266,11 +1266,16 @@ static DSP_STATUS WMD_DEV_Destroy(struct WMD_DEV_CONTEXT *hDevContext)
DSP_STATUS status = DSP_SOK;
struct WMD_DEV_CONTEXT *pDevContext = (struct WMD_DEV_CONTEXT *)
hDevContext;
+
+ /* It should never happen */
+ if (!hDevContext)
+ return DSP_EHANDLE;
+
DBG_Trace(DBG_ENTER, "Entering WMD_DEV_Destroy:n hDevContext ::0x%x\n",
hDevContext);
/* first put the device to stop state */
WMD_BRD_Delete(pDevContext);
- if (pDevContext && pDevContext->pPtAttrs) {
+ if (pDevContext->pPtAttrs) {
pPtAttrs = pDevContext->pPtAttrs;
if (pPtAttrs->hCSObj)
SYNC_DeleteCS(pPtAttrs->hCSObj);
--
1.5.6.5
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