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[ Upstream commit 9950f11211331180269867aef848c7cf56861742 ]
After commit 3a5c7e4611dd, the variable errc is accessed before being
initialized, c.f. below W=2 warning:
| In function 'pch_can_error',
| inlined from 'pch_can_poll' at drivers/net/can/pch_can.c:739:4:
| drivers/net/can/pch_can.c:501:29: warning: 'errc' may be used uninitialized [-Wmaybe-uninitialized]
| 501 | cf->data[6] = errc & PCH_TEC;
| | ^
| drivers/net/can/pch_can.c: In function 'pch_can_poll':
| drivers/net/can/pch_can.c:484:13: note: 'errc' was declared here
| 484 | u32 errc, lec;
| | ^~~~
Moving errc initialization up solves this issue.
Fixes: 3a5c7e4611dd ("can: pch_can: do not report txerr and rxerr during bus-off")
Reported-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Vincent Mailhol <mailhol.vincent@wanadoo.fr>
Reviewed-by: Nathan Chancellor <nathan@kernel.org>
Link: https://lore.kernel.org/all/20220721160032.9348-1-mailhol.vincent@wanadoo.fr
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
d1bedcd794