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| author | Fabio Estevam <fabio.estevam@nxp.com> | 2017-07-22 23:22:59 +0300 |
|---|---|---|
| committer | Wim Van Sebroeck <wim@iguana.be> | 2017-09-09 21:52:13 +0300 |
| commit | dd0a18ca4cbdce00bc2b2e0510793205af27c7c5 (patch) | |
| tree | 03e6fd7fd2894b2705f55f80a75c8eeae7326526 | |
| parent | 15210ad18fcbd7f53f40e26e4391710d271c2daf (diff) | |
| download | linux-dd0a18ca4cbdce00bc2b2e0510793205af27c7c5.tar.xz | |
watchdog: bcm7038: Check the return value from clk_prepare_enable()
clk_prepare_enable() may fail, so we should better check its return value
and propagate it in the case of error.
Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
| -rw-r--r-- | drivers/watchdog/bcm7038_wdt.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/watchdog/bcm7038_wdt.c b/drivers/watchdog/bcm7038_wdt.c index c1b8e534fb55..f88f546e8050 100644 --- a/drivers/watchdog/bcm7038_wdt.c +++ b/drivers/watchdog/bcm7038_wdt.c @@ -136,7 +136,9 @@ static int bcm7038_wdt_probe(struct platform_device *pdev) wdt->clk = devm_clk_get(dev, NULL); /* If unable to get clock, use default frequency */ if (!IS_ERR(wdt->clk)) { - clk_prepare_enable(wdt->clk); + err = clk_prepare_enable(wdt->clk); + if (err) + return err; wdt->rate = clk_get_rate(wdt->clk); /* Prevent divide-by-zero exception */ if (!wdt->rate) |