From: Khadija Kamran <kamrankhadijadj@gmail.com>
To: outreachy@lists.linux.dev
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
linux-staging@lists.linux.dev, linux-kernel@vger.kernel.org
Subject: [PATCH] staging: axis-fifo: initialize timeouts in probe only
Date: Mon, 13 Mar 2023 23:07:10 +0500 [thread overview]
Message-ID: <ZA9mThZ7NyRrQAMX@khadija-virtual-machine> (raw)
Module parameter, read_timeout, can only be set at the loading time. As
it can only be modified once, initialize read_timeout once in the probe
function.
As a result, only use read_timeout as the last argument in
wait_event_interruptible_timeout() call.
Same goes for write_timeout.
Suggested-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Khadija Kamran <kamrankhadijadj@gmail.com>
---
drivers/staging/axis-fifo/axis-fifo.c | 18 ++++++++++++------
1 file changed, 12 insertions(+), 6 deletions(-)
diff --git a/drivers/staging/axis-fifo/axis-fifo.c b/drivers/staging/axis-fifo/axis-fifo.c
index dfd2b357f484..563caf155713 100644
--- a/drivers/staging/axis-fifo/axis-fifo.c
+++ b/drivers/staging/axis-fifo/axis-fifo.c
@@ -384,9 +384,7 @@ static ssize_t axis_fifo_read(struct file *f, char __user *buf,
mutex_lock(&fifo->read_lock);
ret = wait_event_interruptible_timeout(fifo->read_queue,
ioread32(fifo->base_addr + XLLF_RDFO_OFFSET),
- (read_timeout >= 0) ?
- msecs_to_jiffies(read_timeout) :
- MAX_SCHEDULE_TIMEOUT);
+ read_timeout);
if (ret <= 0) {
if (ret == 0) {
@@ -528,9 +526,7 @@ static ssize_t axis_fifo_write(struct file *f, const char __user *buf,
ret = wait_event_interruptible_timeout(fifo->write_queue,
ioread32(fifo->base_addr + XLLF_TDFV_OFFSET)
>= words_to_write,
- (write_timeout >= 0) ?
- msecs_to_jiffies(write_timeout) :
- MAX_SCHEDULE_TIMEOUT);
+ write_timeout);
if (ret <= 0) {
if (ret == 0) {
@@ -815,6 +811,16 @@ static int axis_fifo_probe(struct platform_device *pdev)
char *device_name;
int rc = 0; /* error return value */
+ if (read_timeout >= 0)
+ read_timeout = msecs_to_jiffies(read_timeout);
+ else
+ read_timeout = MAX_SCHEDULE_TIMEOUT;
+
+ if (write_timeout >= 0)
+ write_timeout = msecs_to_jiffies(write_timeout);
+ else
+ write_timeout = MAX_SCHEDULE_TIMEOUT;
+
/* ----------------------------
* init wrapper device
* ----------------------------
--
2.34.1
next reply other threads:[~2023-03-13 18:07 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-03-13 18:07 Khadija Kamran [this message]
2023-03-13 19:00 ` [PATCH] staging: axis-fifo: initialize timeouts in probe only kernel test robot
2023-03-14 3:45 ` kernel test robot
2023-03-14 14:08 ` Khadija Kamran
2023-03-14 14:42 ` Nathan Chancellor
2023-03-14 15:13 ` Alison Schofield
2023-03-14 19:07 ` Fabio M. De Francesco
2023-03-14 20:43 ` Alison Schofield
2023-03-14 21:31 ` Fabio M. De Francesco
2023-03-14 23:57 ` Alison Schofield
2023-03-15 12:32 ` Khadija Kamran
2023-03-15 13:13 ` Fabio M. De Francesco
2023-03-15 13:56 ` Khadija Kamran
2023-03-15 16:44 ` Fabio M. De Francesco
2023-03-16 9:50 ` Khadija Kamran
2023-03-16 11:13 ` Fabio M. De Francesco
2023-03-16 12:03 ` Khadija Kamran
2023-03-15 13:34 ` Fabio M. De Francesco
2023-03-15 14:22 ` Khadija Kamran
2023-03-15 15:06 ` Nathan Chancellor
2023-03-15 16:24 ` Fabio M. De Francesco
2023-03-16 10:17 ` Khadija Kamran
2023-03-16 11:39 ` Fabio M. De Francesco
2023-03-16 11:55 ` Khadija Kamran
2023-03-16 7:40 ` Julia Lawall
2023-03-16 10:47 ` Khadija Kamran
2023-03-16 11:41 ` Khadija Kamran
2023-03-15 16:09 ` Alison Schofield
2023-03-15 16:42 ` Khadija Kamran
2023-03-16 10:36 ` Khadija Kamran
2023-03-16 10:51 ` Julia Lawall
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