Messages in this thread Patch in this message | | | Date | Fri, 9 Nov 2007 14:07:31 +0800 | From | "eric miao" <> | Subject | [PATCH] make ds1wm driver to check ds1wm_platform_data pointer against NULL |
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Do a sanity check for the "struct ds1wm_platform_data" pointer passed in by the platform_device, and so to enforce each platform to provide a valid structure.
Signed-off-by: eric miao <eric.miao@marvell.com> --- drivers/w1/masters/ds1wm.c | 4 ++++ 1 files changed, 4 insertions(+), 0 deletions(-)
diff --git a/drivers/w1/masters/ds1wm.c b/drivers/w1/masters/ds1wm.c index 5747997..11ce9ec 100644 --- a/drivers/w1/masters/ds1wm.c +++ b/drivers/w1/masters/ds1wm.c @@ -351,6 +351,10 @@ static int ds1wm_probe(struct platform_device *pdev) goto err0; } plat = pdev->dev.platform_data; + if (!plat) { + ret = -ENXIO; + goto err0; + } ds1wm_data->bus_shift = plat->bus_shift; ds1wm_data->pdev = pdev; ds1wm_data->pdata = plat; -- 1.5.2.5.GIT - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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