[PATCH] staging: rtl8723bs: hal: Add null check after memory allocation

[Hariprasad Kelam]

Add NULL check post call to rtw_zmalloc.

Signed-off-by: Hariprasad Kelam <hariprasad.kelam@xxxxxxxxx>
---
 drivers/staging/rtl8723bs/hal/sdio_ops.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/staging/rtl8723bs/hal/sdio_ops.c b/drivers/staging/rtl8723bs/hal/sdio_ops.c
index ac79de8..9177c18 100644
--- a/drivers/staging/rtl8723bs/hal/sdio_ops.c
+++ b/drivers/staging/rtl8723bs/hal/sdio_ops.c
@@ -816,6 +816,9 @@ void clearinterrupt8723bsdio(struct adapter *adapter)
 	haldata = GET_HAL_DATA(adapter);
 	clear = rtw_zmalloc(4);
 
+	if (!clear)
+		return;
+
 	/*  Clear corresponding HISR Content if needed */
 	*(__le32 *)clear = cpu_to_le32(haldata->sdio_hisr & MASK_SDIO_HISR_CLEAR);
 	if (*(__le32 *)clear) {
-- 
2.7.4