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staging: axis-fifo: use size_t for write size calculations

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The write length is provided as size_t, but words_to_write and the
return value storage used narrower types (int and unsigned int).
Use size_t for the word count and ssize_t for the return value
to keep the types consistent with the write interface.

This is purely a cleanup. The VFS already bounds the write length
before the driver is called, so this does not change runtime behavior.

Signed-off-by: Lucas Jeffrey <luquijeffrey@gmail.com>
Link: https://patch.msgid.link/20260801173624.106971-1-luquijeffrey@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Lucas Jeffrey 2026-08-01 14:36:24 -03:00 committed by Greg Kroah-Hartman
parent 42600ab23f
commit 193277cf7c
1 changed files with 3 additions and 3 deletions
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6
drivers/staging/axis-fifo/axis-fifo.c
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@ -212,9 +212,9 @@ static ssize_t axis_fifo_write(struct file *f, const char __user *buf,
size_t len, loff_t *off)
{
struct axis_fifo *fifo = f->private_data;
unsigned int words_to_write;
size_t words_to_write;
u32 *txbuf;
int ret;
ssize_t ret;
words_to_write = len / sizeof(u32);
@ -256,7 +256,7 @@ static ssize_t axis_fifo_write(struct file *f, const char __user *buf,
goto end_unlock;
}
for (int i = 0; i < words_to_write; ++i)
for (size_t i = 0; i < words_to_write; ++i)
iowrite32(txbuf[i], fifo->base_addr + XLLF_TDFD_OFFSET);
iowrite32(len, fifo->base_addr + XLLF_TLR_OFFSET);