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[netdrvr] depca: handle platform_device_add() failure

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The following patch fixes a kernel bug in depca_platform_probe().

We don't use a dynamic pointer for pldev->dev.platform_data, so it seems
that the correct way to proceed if platform_device_add(pldev) fails is
to explicitly set the pldev->dev.platform_data pointer to NULL, before
calling the platform_device_put(pldev), or it will be kfree'ed by
platform_device_release().

Signed-off-by: Jeff Garzik <jeff@garzik.org>
This commit is contained in:
Andrea Righi 2007-04-24 12:40:57 -04:00 committed by Jeff Garzik
parent 4bf3631cdb
commit d91c088b39
1 changed files with 2 additions and 1 deletions
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3
drivers/net/depca.c
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@ -1491,8 +1491,9 @@ static void __init depca_platform_probe (void)
depca_io_ports[i].device = pldev;
if (platform_device_add(pldev)) {
platform_device_put(pldev);
depca_io_ports[i].device = NULL;
pldev->dev.platform_data = NULL;
platform_device_put(pldev);
continue;
}