diff --git a/drivers/base/firmware_loader/fallback.c b/drivers/base/firmware_loader/fallback.c index e7a106a3b07ca2d8f075d95f950552a0bb14bf1a..0fdd18ce2c52e7030a63dc3d0d3b3b0c1bab6218 100644 --- a/drivers/base/firmware_loader/fallback.c +++ b/drivers/base/firmware_loader/fallback.c @@ -89,12 +89,11 @@ static void __fw_load_abort(struct fw_priv *fw_priv) { /* * There is a small window in which user can write to 'loading' - * between loading done and disappearance of 'loading' + * between loading done/aborted and disappearance of 'loading' */ - if (fw_sysfs_done(fw_priv)) + if (fw_state_is_aborted(fw_priv) || fw_sysfs_done(fw_priv)) return; - list_del_init(&fw_priv->pending_list); fw_state_aborted(fw_priv); } @@ -280,7 +279,6 @@ static ssize_t firmware_loading_store(struct device *dev, * Same logic as fw_load_abort, only the DONE bit * is ignored and we set ABORT only on failure. */ - list_del_init(&fw_priv->pending_list); if (rc) { fw_state_aborted(fw_priv); written = rc; @@ -513,6 +511,11 @@ static int fw_load_sysfs_fallback(struct fw_sysfs *fw_sysfs, long timeout) } mutex_lock(&fw_lock); + if (fw_state_is_aborted(fw_priv)) { + mutex_unlock(&fw_lock); + retval = -EINTR; + goto out; + } list_add(&fw_priv->pending_list, &pending_fw_head); mutex_unlock(&fw_lock); @@ -538,6 +541,7 @@ static int fw_load_sysfs_fallback(struct fw_sysfs *fw_sysfs, long timeout) } else if (fw_priv->is_paged_buf && !fw_priv->data) retval = -ENOMEM; +out: device_del(f_dev); err_put_dev: put_device(f_dev); diff --git a/drivers/base/firmware_loader/firmware.h b/drivers/base/firmware_loader/firmware.h index 63bd29fdcb9c54bb4ab9d61c14083739277c2f36..a3014e9e2c852d203ff3047a308d3fdfed410f09 100644 --- a/drivers/base/firmware_loader/firmware.h +++ b/drivers/base/firmware_loader/firmware.h @@ -117,8 +117,16 @@ static inline void __fw_state_set(struct fw_priv *fw_priv, WRITE_ONCE(fw_st->status, status); - if (status == FW_STATUS_DONE || status == FW_STATUS_ABORTED) + if (status == FW_STATUS_DONE || status == FW_STATUS_ABORTED) { +#ifdef CONFIG_FW_LOADER_USER_HELPER + /* + * Doing this here ensures that the fw_priv is deleted from + * the pending list in all abort/done paths. + */ + list_del_init(&fw_priv->pending_list); +#endif complete_all(&fw_st->completion); + } } static inline void fw_state_aborted(struct fw_priv *fw_priv) diff --git a/drivers/base/firmware_loader/main.c b/drivers/base/firmware_loader/main.c index 78355095e00d65afecd3e49556474dfc41d9a212..a529235e6bfe9acd63c22cf8c68df50b44be31a8 100644 --- a/drivers/base/firmware_loader/main.c +++ b/drivers/base/firmware_loader/main.c @@ -781,8 +781,10 @@ static void fw_abort_batch_reqs(struct firmware *fw) return; fw_priv = fw->priv; + mutex_lock(&fw_lock); if (!fw_state_is_aborted(fw_priv)) fw_state_aborted(fw_priv); + mutex_unlock(&fw_lock); } /* called from request_firmware() and request_firmware_work_func() */