Make the 'timeout' parameter to ata_exec_internal_sg() *unsigned int* as msecs_to_jiffies() that it calls takes just *unsigned int* for the time in milliseconds. Then follow the suit with ata_exec_internal(), its only caller; also fix up ata_dev_set_feature(), the only ata_exec_internal()'s caller that explicitly passes *unsigned long* variable for timeout... Found by Linux Verification Center (linuxtesting.org) with the SVACE static analysis tool. Signed-off-by: Sergey Shtylyov <s.shtylyov@xxxxxx> --- This patch is against the 'for-next' branch of Damien's 'libata.git' repo. drivers/ata/libata-core.c | 6 +++--- drivers/ata/libata.h | 4 ++-- 2 files changed, 5 insertions(+), 5 deletions(-) Index: libata/drivers/ata/libata-core.c =================================================================== --- libata.orig/drivers/ata/libata-core.c +++ libata/drivers/ata/libata-core.c @@ -1472,7 +1472,7 @@ static void ata_qc_complete_internal(str unsigned ata_exec_internal_sg(struct ata_device *dev, struct ata_taskfile *tf, const u8 *cdb, int dma_dir, struct scatterlist *sgl, - unsigned int n_elem, unsigned long timeout) + unsigned int n_elem, unsigned int timeout) { struct ata_link *link = dev->link; struct ata_port *ap = link->ap; @@ -1647,7 +1647,7 @@ unsigned ata_exec_internal_sg(struct ata unsigned ata_exec_internal(struct ata_device *dev, struct ata_taskfile *tf, const u8 *cdb, int dma_dir, void *buf, unsigned int buflen, - unsigned long timeout) + unsigned int timeout) { struct scatterlist *psg = NULL, sg; unsigned int n_elem = 0; @@ -4339,7 +4339,7 @@ unsigned int ata_dev_set_feature(struct { struct ata_taskfile tf; unsigned int err_mask; - unsigned long timeout = 0; + unsigned int timeout = 0; /* set up set-features taskfile */ ata_dev_dbg(dev, "set features - SATA features\n"); Index: libata/drivers/ata/libata.h =================================================================== --- libata.orig/drivers/ata/libata.h +++ libata/drivers/ata/libata.h @@ -52,11 +52,11 @@ extern u64 ata_tf_read_block(const struc extern unsigned ata_exec_internal(struct ata_device *dev, struct ata_taskfile *tf, const u8 *cdb, int dma_dir, void *buf, unsigned int buflen, - unsigned long timeout); + unsigned int timeout); extern unsigned ata_exec_internal_sg(struct ata_device *dev, struct ata_taskfile *tf, const u8 *cdb, int dma_dir, struct scatterlist *sg, - unsigned int n_elem, unsigned long timeout); + unsigned int n_elem, unsigned int timeout); extern int ata_wait_ready(struct ata_link *link, unsigned long deadline, int (*check_ready)(struct ata_link *link)); extern int ata_dev_read_id(struct ata_device *dev, unsigned int *p_class,