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sata_fsl: fix error handling of irq_of_parse_and_map 

commit aad0b624129709c94c2e19e583b6053520353fa8 upstream.

irq_of_parse_and_map() returns 0 on error (the result is unsigned int),
so testing for negative result never works.

Signed-off-by: Dmitry Torokhov <dtor@chromium.org>
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Dmitry Torokhov 2014-11-14 13:39:05 -08:00 committed by Greg Kroah-Hartman
parent 7d1da80583
commit 69052167b4
1 changed files with 1 additions and 1 deletions
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2
drivers/ata/sata_fsl.c
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@ -1501,7 +1501,7 @@ static int sata_fsl_probe(struct platform_device *ofdev)
host_priv->csr_base = csr_base;
irq = irq_of_parse_and_map(ofdev->dev.of_node, 0);
if (irq < 0) {
if (!irq) {
dev_err(&ofdev->dev, "invalid irq from platform\n");
goto error_exit_with_cleanup;
}