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Signed-off-by: Dmitry Torokhov Reviewed-by: Lyude Paul --- drivers/input/rmi4/rmi_f34.c | 37 ++++++++++++++---------------------- 1 file changed, 14 insertions(+), 23 deletions(-) diff --git a/drivers/input/rmi4/rmi_f34.c b/drivers/input/rmi4/rmi_f34.c index 3b3ac71e53dc..7a05ac00dce2 100644 --- a/drivers/input/rmi4/rmi_f34.c +++ b/drivers/input/rmi4/rmi_f34.c @@ -246,7 +246,6 @@ static int rmi_f34_update_firmware(struct f34_data *f34, (const struct rmi_f34_firmware *)fw->data; u32 image_size =3D le32_to_cpu(syn_fw->image_size); u32 config_size =3D le32_to_cpu(syn_fw->config_size); - int ret; =20 BUILD_BUG_ON(offsetof(struct rmi_f34_firmware, data) !=3D F34_FW_IMAGE_OFFSET); @@ -267,8 +266,7 @@ static int rmi_f34_update_firmware(struct f34_data *f34, dev_err(&f34->fn->dev, "Bad firmware image: fw size %d, expected %d\n", image_size, f34->v5.fw_blocks * f34->v5.block_size); - ret =3D -EILSEQ; - goto out; + return -EILSEQ; } =20 if (config_size && @@ -277,25 +275,18 @@ static int rmi_f34_update_firmware(struct f34_data *f= 34, "Bad firmware image: config size %d, expected %d\n", config_size, f34->v5.config_blocks * f34->v5.block_size); - ret =3D -EILSEQ; - goto out; + return -EILSEQ; } =20 if (image_size && !config_size) { dev_err(&f34->fn->dev, "Bad firmware image: no config data\n"); - ret =3D -EILSEQ; - goto out; + return -EILSEQ; } =20 dev_info(&f34->fn->dev, "Firmware image OK\n"); - mutex_lock(&f34->v5.flash_mutex); - - ret =3D rmi_f34_flash_firmware(f34, syn_fw); =20 - mutex_unlock(&f34->v5.flash_mutex); - -out: - return ret; + guard(mutex)(&f34->v5.flash_mutex); + return rmi_f34_flash_firmware(f34, syn_fw); } =20 static int rmi_f34_status(struct rmi_function *fn) @@ -461,9 +452,8 @@ static ssize_t rmi_driver_update_fw_store(struct device= *dev, { struct rmi_driver_data *data =3D dev_get_drvdata(dev); char fw_name[NAME_MAX]; - const struct firmware *fw; size_t copy_count =3D count; - int ret; + int error; =20 if (count =3D=3D 0 || count >=3D NAME_MAX) return -EINVAL; @@ -474,17 +464,18 @@ static ssize_t rmi_driver_update_fw_store(struct devi= ce *dev, memcpy(fw_name, buf, copy_count); fw_name[copy_count] =3D '\0'; =20 - ret =3D request_firmware(&fw, fw_name, dev); - if (ret) - return ret; + const struct firmware *fw __free(firmware) =3D NULL; + error =3D request_firmware(&fw, fw_name, dev); + if (error) + return error; =20 dev_info(dev, "Flashing %s\n", fw_name); =20 - ret =3D rmi_firmware_update(data, fw); - - release_firmware(fw); + error =3D rmi_firmware_update(data, fw); + if (error) + return error; =20 - return ret ?: count; + return count; } =20 static DEVICE_ATTR(update_fw, 0200, NULL, rmi_driver_update_fw_store); --=20 2.47.0.163.g1226f6d8fa-goog --=20 Dmitry