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| author | Jiasheng Jiang <jiasheng@iscas.ac.cn> | 2021-12-24 10:13:24 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-01-27 08:46:15 +0100 |
| commit | 8155aaa3fbd60ecf7670b090871669a3389a8892 (patch) | |
| tree | 1ac7de47b729388ada2fb59a24fc08446a0d5c87 /include | |
| parent | d12ac700f952f6e0846e68c20d42546aeec8e0d3 (diff) | |
can: xilinx_can: xcan_probe(): check for error irq
[ Upstream commit c6564c13dae25cd7f8e1de5127b4da4500ee5844 ]
For the possible failure of the platform_get_irq(), the returned irq
could be error number and will finally cause the failure of the
request_irq().
Consider that platform_get_irq() can now in certain cases return
-EPROBE_DEFER, and the consequences of letting request_irq()
effectively convert that into -EINVAL, even at probe time rather than
later on. So it might be better to check just now.
Fixes: b1201e44f50b ("can: xilinx CAN controller support")
Link: https://lore.kernel.org/all/20211224021324.1447494-1-jiasheng@iscas.ac.cn
Signed-off-by: Jiasheng Jiang <jiasheng@iscas.ac.cn>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'include')
0 files changed, 0 insertions, 0 deletions