From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Date: Mon, 22 Nov 2021 17:17:20 +0000 (+0200)
Subject: spi: Replace memset() with __GFP_ZERO
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=b00bab9d48bbb6446a5cf366f5f8e501a16031a1;p=linux.git

spi: Replace memset() with __GFP_ZERO

krealloc() as any other kernel memory allocation calls accepts GFP flags,
one of which is __GFP_ZERO. Hence, no need to call memset() explicitly on
the reallocated buffer.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20211122171721.61553-2-andriy.shevchenko@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
---

diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c
index 9d19d9bae2537..3b9010a673975 100644
--- a/drivers/spi/spi.c
+++ b/drivers/spi/spi.c
@@ -1222,11 +1222,10 @@ static int spi_map_msg(struct spi_controller *ctlr, struct spi_message *msg)
 
 		if (max_tx) {
 			tmp = krealloc(ctlr->dummy_tx, max_tx,
-				       GFP_KERNEL | GFP_DMA);
+				       GFP_KERNEL | GFP_DMA | __GFP_ZERO);
 			if (!tmp)
 				return -ENOMEM;
 			ctlr->dummy_tx = tmp;
-			memset(tmp, 0, max_tx);
 		}
 
 		if (max_rx) {