Invoking lseek() may result in an error. Handle it.

Addresses-Coverity-ID: 376212 ("Error handling issues (CHECKED_RETURN)") Signed-off-by: Heinrich Schuchardt heinrich.schuchardt@canonical.com --- drivers/usb/emul/sandbox_flash.c | 10 +++++++--- 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/drivers/usb/emul/sandbox_flash.c b/drivers/usb/emul/sandbox_flash.c index 6e8cfe1650..01ccc4bc17 100644 --- a/drivers/usb/emul/sandbox_flash.c +++ b/drivers/usb/emul/sandbox_flash.c @@ -188,15 +188,19 @@ static int handle_ufi_command(struct sandbox_flash_priv *priv, const void *buff, struct scsi_emul_info *info = &priv->eminfo; const struct scsi_cmd *req = buff; int ret; + off_t offset;

ret = sb_scsi_emul_command(info, req, len); if (!ret) { setup_response(priv); } else if ((ret == SCSI_EMUL_DO_READ || ret == SCSI_EMUL_DO_WRITE) && priv->fd != -1) { - os_lseek(priv->fd, info->seek_block * info->block_size, - OS_SEEK_SET); - setup_response(priv); + offset = os_lseek(priv->fd, info->seek_block * info->block_size, + OS_SEEK_SET); + if (offset == (off_t)-1) + setup_fail_response(priv); + else + setup_response(priv); } else { setup_fail_response(priv); }