[PATCH 02/10] input: iqs5xx: Preserve bootloader errors
flat view
STALE2099d
LANDED
From: Jeff LaBundy <hidden>
Date: 2021-01-18 20:51:35
Subsystem:
input (keyboard, mouse, joystick, touchscreen) drivers, the rest · Maintainers:
Dmitry Torokhov, Linus Torvalds
Status: Landed in mainline as 2539da6677b6 on 2021-01-25.
After user space writes the fw_file attribute to push new firmware to the device, the driver calls iqs5xx_dev_init() to re-initialize the device with the updated firmware or recover the device in case the update failed. In the case of the latter, however, iqs5xx_fw_file_write() returns zero (success) so long as iqs5xx_dev_init() does not fail, and any error encountered during the update process is lost. Solve this by saving the error before calling iqs5xx_dev_init(). Signed-off-by: Jeff LaBundy <redacted> --- drivers/input/touchscreen/iqs5xx.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/drivers/input/touchscreen/iqs5xx.c b/drivers/input/touchscreen/iqs5xx.c
index 08e79d6..ff0a0e9 100644
--- a/drivers/input/touchscreen/iqs5xx.c
+++ b/drivers/input/touchscreen/iqs5xx.c@@ -883,7 +883,7 @@ static int iqs5xx_fw_file_parse(struct i2c_client *client, static int iqs5xx_fw_file_write(struct i2c_client *client, const char *fw_file) { struct iqs5xx_private *iqs5xx = i2c_get_clientdata(client); - int error; + int error, error_bl; u8 *pmap; if (iqs5xx->bl_status == IQS5XX_BL_STATUS_NONE)
@@ -937,6 +937,7 @@ static int iqs5xx_fw_file_write(struct i2c_client *client, const char *fw_file) usleep_range(10000, 10100); } + error_bl = error; error = iqs5xx_dev_init(client); if (!error && iqs5xx->bl_status == IQS5XX_BL_STATUS_RESET) error = -EINVAL;
@@ -948,6 +949,9 @@ static int iqs5xx_fw_file_write(struct i2c_client *client, const char *fw_file) err_kfree: kfree(pmap); + if (error_bl) + return error_bl; + return error; }
--
2.7.4