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staging: rtl8723bs: hal: Add null check after memory allocation

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Add NULL check post call to rtw_zmalloc.

Signed-off-by: Hariprasad Kelam <hariprasad.kelam@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Hariprasad Kelam 2019-06-16 08:44:09 +05:30 committed by Greg Kroah-Hartman
parent 247c2ad278
commit 7930f8e589
1 changed files with 3 additions and 0 deletions
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3
drivers/staging/rtl8723bs/hal/sdio_ops.c
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@ -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) {