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authorLaurent Pinchart <laurent.pinchart@ideasonboard.com>2012-06-13 02:28:24 +0400
committerPaul Mundt <lethal@linux-sh.org>2012-06-13 05:22:10 +0400
commitb6c5ef6f6d3e46d6200b141c30ac000a11b851df (patch)
treea990e8e93deefb12f55075633a6c164e2742dfa7 /drivers/tty
parent6dae14216c85eea13db7b12c469475c5d30e5499 (diff)
downloadlinux-b6c5ef6f6d3e46d6200b141c30ac000a11b851df.tar.xz
serial: sh-sci: Make probe fail for ports that exceed the maximum count
The driver supports a maximum number of ports configurable at compile time. Make sure the probe() method fails when registering a port that exceeds the maximum instead of returning success without registering the port. This fixes a crash at system suspend time, when the driver tried to suspend a non-registered port using the UART core. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Diffstat (limited to 'drivers/tty')
-rw-r--r--drivers/tty/serial/sh-sci.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/tty/serial/sh-sci.c b/drivers/tty/serial/sh-sci.c
index 27df2ad4826b..1bd9163bc118 100644
--- a/drivers/tty/serial/sh-sci.c
+++ b/drivers/tty/serial/sh-sci.c
@@ -2391,7 +2391,7 @@ static int __devinit sci_probe_single(struct platform_device *dev,
index+1, SCI_NPORTS);
dev_notice(&dev->dev, "Consider bumping "
"CONFIG_SERIAL_SH_SCI_NR_UARTS!\n");
- return 0;
+ return -EINVAL;
}
ret = sci_init_single(dev, sciport, index, p);