diff options
| author | Jiasheng Jiang <jiasheng@iscas.ac.cn> | 2022-12-08 19:00:58 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-12-08 16:43:12 +0100 |
| commit | c35ca10f53c51eeb610d3f8fbc6dd6d511b58a58 (patch) | |
| tree | 0084dea0f761abbd81ed4c2c524e6d2aaeb10c00 /drivers/usb/storage/alauda.c | |
| parent | 82710ecd0e5d401c36ad21f00d644672005233b9 (diff) | |
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")
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Jiasheng Jiang <jiasheng@iscas.ac.cn>
Link: https://lore.kernel.org/r/20221208110058.12983-1-jiasheng@iscas.ac.cn
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/storage/alauda.c')
| -rw-r--r-- | drivers/usb/storage/alauda.c | 2 |
1 files changed, 2 insertions, 0 deletions
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; |