staging: rtl8723bs: hal: sdio_ops: fix Comparison to NULL

this patch fixes below warning reported by checkpatch

CHECK: Comparison to NULL could be written "c2h_evt"

Signed-off-by: Hariprasad Kelam <hariprasad.kelam@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
1 file changed