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From: Sergey Shtylyov <s.shtylyov@omp.ru>
To: Damien Le Moal <damien.lemoal@opensource.wdc.com>,
	<linux-ide@vger.kernel.org>
Subject: [PATCH v2 2/2] ata: libata-core: fix sloppy parameter type in ata_exec_internal[_sg]()
Date: Wed, 15 Jun 2022 22:38:21 +0300	[thread overview]
Message-ID: <20220615193821.9235-3-s.shtylyov@omp.ru> (raw)
In-Reply-To: <20220615193821.9235-1-s.shtylyov@omp.ru>

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@omp.ru>
---
Changes in version 2:
- rebased atop of the new patch #1.

 drivers/ata/libata-core.c | 6 +++---
 drivers/ata/libata.h      | 2 +-
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c
index 3cc1312a2622..03a08d1e666a 100644
--- a/drivers/ata/libata-core.c
+++ b/drivers/ata/libata-core.c
@@ -1470,7 +1470,7 @@ static void ata_qc_complete_internal(struct ata_queued_cmd *qc)
 static 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;
@@ -1645,7 +1645,7 @@ static unsigned ata_exec_internal_sg(struct ata_device *dev,
 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;
@@ -4342,7 +4342,7 @@ unsigned int ata_dev_set_feature(struct ata_device *dev, u8 enable, u8 feature)
 {
 	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");
diff --git a/drivers/ata/libata.h b/drivers/ata/libata.h
index 1446a482835d..8292d4cdc22b 100644
--- a/drivers/ata/libata.h
+++ b/drivers/ata/libata.h
@@ -52,7 +52,7 @@ extern u64 ata_tf_read_block(const struct ata_taskfile *tf,
 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 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,
-- 
2.26.3

  parent reply	other threads:[~2022-06-15 19:38 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-06-15 19:38 [PATCH v2 0/2] Fix sloppy 'timeout' parameter type in libata-core.c Sergey Shtylyov
2022-06-15 19:38 ` [PATCH v2 1/2] ata: libata-core: make ata_exec_internal_sg() *static* Sergey Shtylyov
2022-06-17  7:48   ` Damien Le Moal
2022-06-15 19:38 ` Sergey Shtylyov [this message]
2022-06-17  7:44   ` [PATCH v2 2/2] ata: libata-core: fix sloppy parameter type in ata_exec_internal[_sg]() Damien Le Moal
2022-06-17 17:27     ` Sergey Shtylyov
2022-06-18  6:45       ` Damien Le Moal
2022-06-18 19:49         ` Sergey Shtylyov
2022-06-19 23:23   ` Damien Le Moal
2022-06-15 19:49 ` [PATCH v2 0/2] Fix sloppy 'timeout' parameter type in libata-core.c Sergey Shtylyov

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