staging: rtl8712: Remove NULL comparison

Remove NULL comparison by using '!' operator. Problem found
using checkpatch.pl
CHECK: Comparison to NULL could be written "!ptmpchar"

Signed-off-by: Amitoj Kaur Chawla <amitoj1606@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/staging/rtl8712/hal_init.c b/drivers/staging/rtl8712/hal_init.c
index 469c566..db0c1de 100644 (file)
--- a/drivers/staging/rtl8712/hal_init.c
+++ b/drivers/staging/rtl8712/hal_init.c
@@ -178,7 +178,7 @@ static u8 rtl8712_dl_fw(struct _adapter *padapter)
                          fwhdr.img_IMEM_size : fwhdr.img_SRAM_size;
                maxlen += txdscp_sz;
                ptmpchar = kmalloc(maxlen + FWBUFF_ALIGN_SZ, GFP_ATOMIC);
-               if (ptmpchar == NULL)
+               if (!ptmpchar)
                        return ret;
 
                ptx_desc = (struct tx_desc *)(ptmpchar + FWBUFF_ALIGN_SZ -