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authorAlexandre Belloni <alexandre.belloni@bootlin.com>2018-02-12 23:47:33 +0100
committerAlexandre Belloni <alexandre.belloni@bootlin.com>2018-03-01 10:49:23 +0100
commitce1ae8eb83bee42c5a0dbcc01346e41c6e85da43 (patch)
treea95775bba15fb139d0bccb163729dc831c7c16a0 /drivers
parentrtc: rv8803: put struct nvmem_config on the stack (diff)
downloadlinux-ce1ae8eb83bee42c5a0dbcc01346e41c6e85da43.tar.xz
linux-ce1ae8eb83bee42c5a0dbcc01346e41c6e85da43.zip
rtc: rv8803: fix possible race condition
The probe function is not allowed to fail after registering the RTC. Call rtc_register_device() at the end. Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/rtc/rtc-rv8803.c16
1 files changed, 8 insertions, 8 deletions
diff --git a/drivers/rtc/rtc-rv8803.c b/drivers/rtc/rtc-rv8803.c
index 6fb5041f750b..29fc3d210392 100644
--- a/drivers/rtc/rtc-rv8803.c
+++ b/drivers/rtc/rtc-rv8803.c
@@ -590,14 +590,6 @@ static int rv8803_probe(struct i2c_client *client,
}
}
- rv8803->rtc->ops = &rv8803_rtc_ops;
- rv8803->rtc->nvram_old_abi = true;
- err = rtc_register_device(rv8803->rtc);
- if (err)
- return err;
-
- rtc_nvmem_register(rv8803->rtc, &nvmem_cfg);
-
err = rv8803_write_reg(rv8803->client, RV8803_EXT, RV8803_EXT_WADA);
if (err)
return err;
@@ -608,6 +600,14 @@ static int rv8803_probe(struct i2c_client *client,
return err;
}
+ rv8803->rtc->ops = &rv8803_rtc_ops;
+ rv8803->rtc->nvram_old_abi = true;
+ err = rtc_register_device(rv8803->rtc);
+ if (err)
+ return err;
+
+ rtc_nvmem_register(rv8803->rtc, &nvmem_cfg);
+
rv8803->rtc->max_user_freq = 1;
return 0;