OpenCloudOS-Kernel/drivers/media/pci/netup_unidvb
Lukas Wunner e297ddf296
media: netup_unidvb: Don't leak SPI master in probe error path
If the call to spi_register_master() fails on probe of the NetUP
Universal DVB driver, the spi_master struct is erroneously not freed.

Likewise, if spi_new_device() fails, the spi_controller struct is
not unregistered.  Plug the leaks.

While at it, fix an ordering issue in netup_spi_release() wherein
spi_unregister_master() is called after fiddling with the IRQ control
register.  The correct order is to call spi_unregister_master() *before*
this teardown step because bus accesses may still be ongoing until that
function returns.

Fixes: 52b1eaf4c5 ("[media] netup_unidvb: NetUP Universal DVB-S/S2/T/T2/C PCI-E card driver")
Signed-off-by: Lukas Wunner <lukas@wunner.de>
Reviewed-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Cc: <stable@vger.kernel.org> # v4.3+: 5e844cc37a5c: spi: Introduce device-managed SPI controller allocation
Cc: <stable@vger.kernel.org> # v4.3+
Cc: Kozlov Sergey <serjk@netup.ru>
Link: https://lore.kernel.org/r/c4c24f333fc7840f4a3db24789e6e10dd660bede.1607286887.git.lukas@wunner.de
Signed-off-by: Mark Brown <broonie@kernel.org>
2020-12-07 14:18:57 +00:00
..
Kconfig treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
Makefile media: prefix header search paths with $(srctree)/ 2019-05-18 11:49:56 +09:00
netup_unidvb.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157 2019-05-30 11:26:37 -07:00
netup_unidvb_ci.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157 2019-05-30 11:26:37 -07:00
netup_unidvb_core.c media: netup_unidvb: drop initialization of PM pointers 2020-09-27 11:24:28 +02:00
netup_unidvb_i2c.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157 2019-05-30 11:26:37 -07:00
netup_unidvb_spi.c media: netup_unidvb: Don't leak SPI master in probe error path 2020-12-07 14:18:57 +00:00