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i3c: master: Fix missing 'ret' assignment in set_speed()

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commit b266e0d4dac00eecdfaf50ec3f708fd0c3b39637 upstream.

Fix a probe failure in the i3c master driver that occurs when no i3c
devices are connected to the bus.

The issue arises in `i3c_master_bus_init()` where the `ret` value is not
updated after calling `master->ops->set_speed()`. If no devices are
present, `ret` remains set to `I3C_ERROR_M2`, causing the code to
incorrectly proceed to `err_bus_cleanup`.

Cc: stable@vger.kernel.org
Fixes: aef79e189ba2 ("i3c: master: support to adjust first broadcast address speed")
Signed-off-by: Frank Li <Frank.Li@nxp.com>
Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Tested-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Acked-by: Mukesh Kumar Savaliya <quic_msavaliy@quicinc.com>
Reviewed-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/r/20250108225533.915334-1-Frank.Li@nxp.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Frank Li 2025-01-08 17:55:33 -05:00 committed by Greg Kroah-Hartman
parent d5a461c315
commit 3faa17654d
1 changed files with 1 additions and 1 deletions
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2
drivers/i3c/master.c
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@ -1861,7 +1861,7 @@ static int i3c_master_bus_init(struct i3c_master_controller *master)
goto err_bus_cleanup;
if (master->ops->set_speed) {
master->ops->set_speed(master, I3C_OPEN_DRAIN_NORMAL_SPEED);
ret = master->ops->set_speed(master, I3C_OPEN_DRAIN_NORMAL_SPEED);
if (ret)
goto err_bus_cleanup;
}