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| author | Tomer Maimon <tmaimon77@gmail.com> | 2021-01-20 01:34:12 +0300 |
|---|---|---|
| committer | Joel Stanley <joel@jms.id.au> | 2021-11-01 09:42:45 +0300 |
| commit | baf077c075922e4187838638fd0a78ecb43e910e (patch) | |
| tree | d446044d3a7fb3230906b75c71881bf9bef7c8e9 /drivers/watchdog | |
| parent | 9634fd2f8f3536101b1a411f1e6e90a4c5ef952c (diff) | |
| download | linux-baf077c075922e4187838638fd0a78ecb43e910e.tar.xz | |
watchdog: npcm: Modify get reset status function
Once the syscon phandle is not found the WD reset status will not be
supported, so return to the function caller.
OpenBMC-Staging-Count: 4
Signed-off-by: Tomer Maimon <tmaimon77@gmail.com>
Link: https://lore.kernel.org/r/20210119223412.223492-5-tmaimon77@gmail.com
Signed-off-by: Joel Stanley <joel@jms.id.au>
Diffstat (limited to 'drivers/watchdog')
| -rw-r--r-- | drivers/watchdog/npcm_wdt.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/watchdog/npcm_wdt.c b/drivers/watchdog/npcm_wdt.c index 82fbfcddfc00..622b30566a5b 100644 --- a/drivers/watchdog/npcm_wdt.c +++ b/drivers/watchdog/npcm_wdt.c @@ -202,8 +202,10 @@ static void npcm_get_reset_status(struct npcm_wdt *wdt, struct device *dev) u32 rstval; gcr_regmap = syscon_regmap_lookup_by_phandle(dev->of_node, "syscon"); - if (IS_ERR(gcr_regmap)) + if (IS_ERR(gcr_regmap)) { dev_warn(dev, "Failed to find gcr syscon, WD reset status not supported\n"); + return; + } regmap_read(gcr_regmap, NPCM7XX_RESSR_OFFSET, &rstval); if (!rstval) { |