This is a note to let you know that I've just added the patch titled
fpga: altera-pr-ip: fix unsigned comparison with less than zero
to the 5.10-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
fpga-altera-pr-ip-fix-unsigned-comparison-with-less-.patch
and it can be found in the queue-5.10 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 4f23efff2b45d2e7ff47db3c5a31a386343decc4
Author: Marco Pagani <marpagan@xxxxxxxxxx>
Date: Thu Jun 9 16:05:19 2022 +0200
fpga: altera-pr-ip: fix unsigned comparison with less than zero
[ Upstream commit 2df84a757d87fd62869fc401119d429735377ec5 ]
Fix the "comparison with less than zero" warning reported by
cppcheck for the unsigned (size_t) parameter count of the
alt_pr_fpga_write() function.
Fixes: d201cc17a8a3 ("fpga pr ip: Core driver support for Altera Partial Reconfiguration IP")
Reviewed-by: Tom Rix <trix@xxxxxxxxxx>
Acked-by: Xu Yilun <yilun.xu@xxxxxxxxx>
Signed-off-by: Marco Pagani <marpagan@xxxxxxxxxx>
Link: https://lore.kernel.org/r/20220609140520.42662-1-marpagan@xxxxxxxxxx
Signed-off-by: Xu Yilun <yilun.xu@xxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/fpga/altera-pr-ip-core.c b/drivers/fpga/altera-pr-ip-core.c
index 2cf25fd5e897..75b4b3ec933a 100644
--- a/drivers/fpga/altera-pr-ip-core.c
+++ b/drivers/fpga/altera-pr-ip-core.c
@@ -108,7 +108,7 @@ static int alt_pr_fpga_write(struct fpga_manager *mgr, const char *buf,
u32 *buffer_32 = (u32 *)buf;
size_t i = 0;
- if (count <= 0)
+ if (!count)
return -EINVAL;
/* Write out the complete 32-bit chunks */
