[<prev] [next>] [thread-next>] [day] [month] [year] [list]
Message-Id: <20221208110058.12983-1-jiasheng@iscas.ac.cn>
Date: Thu, 8 Dec 2022 19:00:58 +0800
From: Jiasheng Jiang <jiasheng@...as.ac.cn>
To: stern@...land.harvard.edu, gregkh@...uxfoundation.org
Cc: linux-usb@...r.kernel.org, usb-storage@...ts.one-eyed-alien.net,
linux-kernel@...r.kernel.org, Jiasheng Jiang <jiasheng@...as.ac.cn>
Subject: [PATCH] usb: storage: Add check for kcalloc
As kcalloc may return NULL pointer, the return value should
be checked and return error if fails as same as the ones in
alauda_read_map.
Fixes: e80b0fade09e ("[PATCH] USB Storage: add alauda support")
Signed-off-by: Jiasheng Jiang <jiasheng@...as.ac.cn>
---
drivers/usb/storage/alauda.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/usb/storage/alauda.c b/drivers/usb/storage/alauda.c
index 747be69e5e69..5e912dd29b4c 100644
--- a/drivers/usb/storage/alauda.c
+++ b/drivers/usb/storage/alauda.c
@@ -438,6 +438,8 @@ static int alauda_init_media(struct us_data *us)
+ MEDIA_INFO(us).blockshift + MEDIA_INFO(us).pageshift);
MEDIA_INFO(us).pba_to_lba = kcalloc(num_zones, sizeof(u16*), GFP_NOIO);
MEDIA_INFO(us).lba_to_pba = kcalloc(num_zones, sizeof(u16*), GFP_NOIO);
+ if (MEDIA_INFO(us).pba_to_lba == NULL || MEDIA_INFO(us).lba_to_pba == NULL)
+ return USB_STOR_TRANSPORT_ERROR;
if (alauda_reset_media(us) != USB_STOR_XFER_GOOD)
return USB_STOR_TRANSPORT_ERROR;
--
2.25.1
Powered by blists - more mailing lists