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authorCharles Keepax <ckeepax@opensource.cirrus.com>2018-10-19 09:59:58 +0100
committerWolfram Sang <wsa@the-dreams.de>2018-10-31 23:33:34 +0000
commit6f108dd70d3010c391c1e9f56f3f20d1f9e75450 (patch)
tree45c87c78d6a3e6bb0009dff6ebd50880150d9a52 /drivers
parentb9bb3fdf4e870fb655064f5c3c81c1fee7fd89ce (diff)
i2c: Clear client->irq in i2c_device_remove
The IRQ will be mapped in i2c_device_probe only if client->irq is zero and i2c_device_remove does not clear this. When rebinding an I2C device, whos IRQ provider has also been rebound this means that an IRQ mapping will never be created, causing the I2C device to fail to acquire its IRQ. Fix this issue by clearing client->irq in i2c_device_remove, forcing i2c_device_probe to lookup the mapping again. Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com> Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/i2c/i2c-core-base.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/i2c/i2c-core-base.c b/drivers/i2c/i2c-core-base.c
index 656f0a6fe3ad..28460f6a60cc 100644
--- a/drivers/i2c/i2c-core-base.c
+++ b/drivers/i2c/i2c-core-base.c
@@ -430,6 +430,8 @@ static int i2c_device_remove(struct device *dev)
dev_pm_clear_wake_irq(&client->dev);
device_init_wakeup(&client->dev, false);
+ client->irq = 0;
+
return status;
}