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| author |   LABBE Corentin <clabbe.montjoie@gmail.com> | 2016-08-16 15:53:18 +0200 |
|---|---|---|
| committer |   Alexandre Belloni <alexandre.belloni@free-electrons.com> | 2016-08-31 19:19:16 +0200 |
| commit | 7922118f8f3e76eb6534e9221a6c9f496c0ae699 (patch) | |
| tree | cd228a2906913e5c129a8e5abb863d8fa2177df2 /drivers/memory/atmel-sdramc.c | |
| parent | memory: atmel-ebi: use PTR_ERR_OR_ZERO() to simplify the code (diff) | |
| download | linux-dev-7922118f8f3e76eb6534e9221a6c9f496c0ae699.tar.xz linux-dev-7922118f8f3e76eb6534e9221a6c9f496c0ae699.zip | |
memory: atmel-sdramc: fix a possible NULL dereference
of_match_device could return NULL, and so cause a NULL pointer
dereference later.
For fixing this problem, we use of_device_get_match_data(), this will
simplify the code a little by using a standard function for
getting the match data.
Signed-off-by: LABBE Corentin <clabbe.montjoie@gmail.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Diffstat (limited to 'drivers/memory/atmel-sdramc.c')
| -rw-r--r-- | drivers/memory/atmel-sdramc.c | 4 |
1 files changed, 1 insertions, 3 deletions
diff --git a/drivers/memory/atmel-sdramc.c b/drivers/memory/atmel-sdramc.c index 53a341f3b305..12080b05e3e6 100644 --- a/drivers/memory/atmel-sdramc.c +++ b/drivers/memory/atmel-sdramc.c @@ -53,12 +53,10 @@ static const struct of_device_id atmel_ramc_of_match[] = { static int atmel_ramc_probe(struct platform_device *pdev) { - const struct of_device_id *match; const struct at91_ramc_caps *caps; struct clk *clk; - match = of_match_device(atmel_ramc_of_match, &pdev->dev); - caps = match->data; + caps = of_device_get_match_data(&pdev->dev); if (caps->has_ddrck) { clk = devm_clk_get(&pdev->dev, "ddrck"); |