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linux/net/nfc/nci
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Krzysztof Kozlowski fc27ab4890 NFC: nci: uart: Set tty->disc_data only in success path 
Setting tty->disc_data before opening the NCI device means we need to
clean it up on error paths.  This also opens some short window if device
starts sending data, even before NCIUARTSETDRIVER IOCTL succeeded
(broken hardware?).  Close the window by exposing tty->disc_data only on
the success path, when opening of the NCI device and try_module_get()
succeeds.

The code differs in error path in one aspect: tty->disc_data won't be
ever assigned thus NULL-ified.  This however should not be relevant
difference, because of "tty->disc_data=NULL" in nci_uart_tty_open().

Cc: Linus Torvalds <torvalds@linuxfoundation.org>
Fixes: 9961127d4b ("NFC: nci: add generic uart support")
Cc: <stable@vger.kernel.org>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Link: https://patch.msgid.link/20250618073649.25049-2-krzysztof.kozlowski@linaro.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-06-19 08:33:54 -07:00
..
core.c treewide, timers: Rename from_timer() to timer_container_of() 2025-06-08 09:07:37 +02:00
data.c treewide: Switch/rename to timer_delete[_sync]() 2025-04-05 10:30:12 +02:00
hci.c NFC: nci: Add bounds checking in nci_hci_create_pipe() 2025-01-22 19:39:27 -08:00
Kconfig
lib.c
Makefile
ntf.c net: nfc: Propagate ISO14443 type A target ATS to userspace via netlink 2024-11-07 10:21:58 +01:00
rsp.c treewide: Switch/rename to timer_delete[_sync]() 2025-04-05 10:30:12 +02:00
spi.c net: fill in MODULE_DESCRIPTION()s for NFC 2024-01-11 16:16:08 -08:00
uart.c NFC: nci: uart: Set tty->disc_data only in success path 2025-06-19 08:33:54 -07:00