diff options
| author | Guillaume Ranquet <granquet@baylibre.com> | 2022-03-07 20:26:56 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-04-15 15:14:43 +0300 |
| commit | b9d22a8fc6cfd5f29ea19cbf1d60aa9cee6df6f3 (patch) | |
| tree | 79a2997fb9f82a668a70096b26b5274ff89792f9 | |
| parent | c1204628ae361945c18662aeeeb5d09ec0ceb1de (diff) | |
| download | linux-b9d22a8fc6cfd5f29ea19cbf1d60aa9cee6df6f3.tar.xz | |
clocksource/drivers/timer-of: Check return value of of_iomap in timer_of_base_init()
[ Upstream commit 4467b8bad2401794fb89a0268c8c8257180bf60f ]
of_base->base can either be iomapped using of_io_request_and_map() or
of_iomap() depending whether or not an of_base->name has been set.
Thus check of_base->base against NULL as of_iomap() does not return a
PTR_ERR() in case of error.
Fixes: 9aea417afa6b ("clocksource/drivers/timer-of: Don't request the resource by name")
Signed-off-by: Guillaume Ranquet <granquet@baylibre.com>
Link: https://lore.kernel.org/r/20220307172656.4836-1-granquet@baylibre.com
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
| -rw-r--r-- | drivers/clocksource/timer-of.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/clocksource/timer-of.c b/drivers/clocksource/timer-of.c index 6e2cb3693ed8..82bb0d39e8af 100644 --- a/drivers/clocksource/timer-of.c +++ b/drivers/clocksource/timer-of.c @@ -164,9 +164,9 @@ static __init int timer_of_base_init(struct device_node *np, of_base->base = of_base->name ? of_io_request_and_map(np, of_base->index, of_base->name) : of_iomap(np, of_base->index); - if (IS_ERR(of_base->base)) { - pr_err("Failed to iomap (%s)\n", of_base->name); - return PTR_ERR(of_base->base); + if (IS_ERR_OR_NULL(of_base->base)) { + pr_err("Failed to iomap (%s:%s)\n", np->name, of_base->name); + return of_base->base ? PTR_ERR(of_base->base) : -ENOMEM; } return 0; |