From: Jiasheng Jiang jiasheng@iscas.ac.cn
[ Upstream commit c35ca10f53c51eeb610d3f8fbc6dd6d511b58a58 ]
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 Signed-off-by: Sasha Levin sashal@kernel.org --- 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 ddab2cd3d2e7..de62421d9670 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;