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From: Andrey Smirnov <andrew.smirnov@gmail.com>
To: barebox@lists.infradead.org
Cc: Andrey Smirnov <andrew.smirnov@gmail.com>
Subject: [PATCH 01/26] usb: storage: Simplify memory allocation in usb_stor_probe()
Date: Thu,  7 Mar 2019 00:00:11 -0800	[thread overview]
Message-ID: <20190307080036.28028-2-andrew.smirnov@gmail.com> (raw)
In-Reply-To: <20190307080036.28028-1-andrew.smirnov@gmail.com>

Replace explicit malloc() + OOM check and memset() with a single call
to xzalloc().

Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
---
 drivers/usb/storage/usb.c | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/drivers/usb/storage/usb.c b/drivers/usb/storage/usb.c
index 8218bb2a7..d25e19473 100644
--- a/drivers/usb/storage/usb.c
+++ b/drivers/usb/storage/usb.c
@@ -541,10 +541,7 @@ static int usb_stor_probe(struct usb_device *usbdev,
 	US_DEBUGP("Selected interface %d\n", (int)intf->desc.bInterfaceNumber);
 
 	/* allocate us_data structure */
-	us = (struct us_data *)malloc(sizeof(struct us_data));
-	if (!us)
-		return -ENOMEM;
-	memset(us, 0, sizeof(struct us_data));
+	us = xzalloc(sizeof(*us));
 
 	/* initialize the us_data structure */
 	us->pusb_dev = usbdev;
-- 
2.20.1


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  reply	other threads:[~2019-03-07  8:00 UTC|newest]

Thread overview: 28+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-03-07  8:00 [PATCH 00/26] USB storage improvements Andrey Smirnov
2019-03-07  8:00 ` Andrey Smirnov [this message]
2019-03-07  8:00 ` [PATCH 02/26] usb: storage: Replace custom debug tracing with dev_dbg Andrey Smirnov
2019-03-07  8:00 ` [PATCH 03/26] usb: storage: Don't use "unsigned long" for 32-bit values Andrey Smirnov
2019-03-07  8:00 ` [PATCH 04/26] usb: storage: Make usb_stor_read_capacity() a standalone function Andrey Smirnov
2019-03-07  8:00 ` [PATCH 05/26] usb: storage: Make usb_stor_inquiry() " Andrey Smirnov
2019-03-07  8:00 ` [PATCH 06/26] usb: storage: Make usb_stor_test_unit_ready() " Andrey Smirnov
2019-03-07  8:00 ` [PATCH 07/26] usb: storage: Make usb_stor_read_10() " Andrey Smirnov
2019-03-07  8:00 ` [PATCH 08/26] usb: storage: Make usb_stor_write_10() " Andrey Smirnov
2019-03-07  8:00 ` [PATCH 09/26] usb: storage: Drop extra call to transport in usb_stor_write_10() Andrey Smirnov
2019-03-07  8:00 ` [PATCH 10/26] usb: storage: Share code for READ(10) and WRITE(10) Andrey Smirnov
2019-03-07  8:00 ` [PATCH 11/26] usb: storage: Make usb_stor_request_sense() a standalone function Andrey Smirnov
2019-03-07  8:00 ` [PATCH 12/26] usb: storage: Remove unused variables Andrey Smirnov
2019-03-07  8:00 ` [PATCH 13/26] usb: storage: Drop struct SCSI_cmd_block Andrey Smirnov
2019-03-07  8:00 ` [PATCH 14/26] usb: hub: Do not include <scsi.h> Andrey Smirnov
2019-03-07  8:00 ` [PATCH 15/26] ata: ahci: " Andrey Smirnov
2019-03-07  8:00 ` [PATCH 16/26] usb: storage: Drop unused fields in struct us_data Andrey Smirnov
2019-03-07  8:00 ` [PATCH 17/26] usb: storage: Drop unused us_blkdev_list Andrey Smirnov
2019-03-07  8:00 ` [PATCH 18/26] usb: storage: Introduce usb_stor_transport() Andrey Smirnov
2019-03-07  8:00 ` [PATCH 19/26] usb: storage: Use put_unaligned_be* helpers Andrey Smirnov
2019-03-07  8:00 ` [PATCH 20/26] usb: Drop usb_disable_asynch() Andrey Smirnov
2019-03-07  8:00 ` [PATCH 21/26] usb: storage: Drop unnecessary check in usb_stor_blk_io() Andrey Smirnov
2019-03-07  8:00 ` [PATCH 22/26] usb: storage: Drop needless macro Andrey Smirnov
2019-03-07  8:00 ` [PATCH 23/26] usb: storage: Use simple boolean to speficy read vs. write operation Andrey Smirnov
2019-03-07  8:00 ` [PATCH 24/26] usb: storage: Simplify I/O loop in usb_stor_blk_io() Andrey Smirnov
2019-03-07  8:00 ` [PATCH 25/26] usb: storage: Drop unnecessary assignment Andrey Smirnov
2019-03-07  8:00 ` [PATCH 26/26] usb: storage: Inline usb_limit_blk_cnt() Andrey Smirnov
2019-03-11  7:11 ` [PATCH 00/26] USB storage improvements Sascha Hauer

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