Commits
Sean Wang committed 637c8e90139
Bluetooth: btmtksdio: fix uninitialized symbol errors in btmtksdio_rx_packet
Fixed all the below warnings. They would probably cause the following
error handling path would use the uninitialized value and then produce
unexpected behavior.
drivers/bluetooth/btmtksdio.c:470:2: warning: ‘old_len’ may be used
uninitialized in this function [-Wmaybe-uninitialized]
print_hex_dump(KERN_ERR, "err sdio rx: ", DUMP_PREFIX_NONE, 4, 1,
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
old_data, old_len, true);
~~~~~~~~~~~~~~~~~~~~~~~~
drivers/bluetooth/btmtksdio.c:376:15: note: ‘old_len’ was declared here
unsigned int old_len;
^~~~~~~
drivers/bluetooth/btmtksdio.c:470:2: warning: ‘old_data’ may be used
uninitialized in this function [-Wmaybe-uninitialized]
print_hex_dump(KERN_ERR, "err sdio rx: ", DUMP_PREFIX_NONE, 4, 1,
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
old_data, old_len, true);
~~~~~~~~~~~~~~~~~~~~~~~~
drivers/bluetooth/btmtksdio.c:375:17: note: ‘old_data’ was declared here
unsigned char *old_data;
^~~~~~~~
v2: Remove old_len and old_data because the error path for sdio_readsb also
seems wrong. And change the prefix from "mediatek" to "btmtksdio".
Fixes: d74eef2834b5 ("Bluetooth: mediatek: add support for MediaTek MT7663S and MT7668S SDIO devices")
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Reported-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>