linux/drivers/nfc/nfcmrvl
Johan Hovold c3953a3c2d NFC: nfcmrvl: fix gpio-handling regression
Fix two reset-gpio sanity checks which were never converted to use
gpio_is_valid(), and make sure to use -EINVAL to indicate a missing
reset line also for the UART-driver module parameter and for the USB
driver.

This specifically prevents the UART and USB drivers from incidentally
trying to request and use gpio 0, and also avoids triggering a WARN() in
gpio_to_desc() during probe when no valid reset line has been specified.

Fixes: e33a3f84f8 ("NFC: nfcmrvl: allow gpio 0 for reset signalling")
Reported-by: syzbot+cf35b76f35e068a1107f@syzkaller.appspotmail.com
Tested-by: syzbot+cf35b76f35e068a1107f@syzkaller.appspotmail.com
Signed-off-by: Johan Hovold <johan@kernel.org>
2019-08-05 10:25:48 -07:00
..
Kconfig
Makefile
fw_dnld.c
fw_dnld.h
i2c.c
main.c NFC: nfcmrvl: fix gpio-handling regression 2019-08-05 10:25:48 -07:00
nfcmrvl.h
spi.c
uart.c NFC: nfcmrvl: fix gpio-handling regression 2019-08-05 10:25:48 -07:00
usb.c NFC: nfcmrvl: fix gpio-handling regression 2019-08-05 10:25:48 -07:00