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authorColin Ian King <[email protected]>2018-01-30 15:11:44 +0000
committerMichael Ellerman <[email protected]>2018-02-08 23:56:11 +1100
commitdedab7f0d3137441a97fe7cf9b9ca5dbd20ca9a5 (patch)
tree54e976a81e05f1231af1d3b4ff33dd8340acf0e9
parent6cc3f91bf69fc8c1719704607474f9b9df56f348 (diff)
ocxl: fix signed comparison with less than zero
Currently the comparison of used < 0 is always false because uses is a size_t. Fix this by making used a ssize_t type. Detected by Coccinelle: drivers/misc/ocxl/file.c:320:6-10: WARNING: Unsigned expression compared with zero: used < 0 Fixes: 5ef3166e8a32 ("ocxl: Driver code for 'generic' opencapi devices") Signed-off-by: Colin Ian King <[email protected]> Acked-by: Andrew Donnellan <[email protected]> Acked-by: Frederic Barrat <[email protected]> Signed-off-by: Michael Ellerman <[email protected]>
-rw-r--r--drivers/misc/ocxl/file.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/misc/ocxl/file.c b/drivers/misc/ocxl/file.c
index c90c1a578d2f..1287e4430e6b 100644
--- a/drivers/misc/ocxl/file.c
+++ b/drivers/misc/ocxl/file.c
@@ -277,7 +277,7 @@ static ssize_t afu_read(struct file *file, char __user *buf, size_t count,
struct ocxl_context *ctx = file->private_data;
struct ocxl_kernel_event_header header;
ssize_t rc;
- size_t used = 0;
+ ssize_t used = 0;
DEFINE_WAIT(event_wait);
memset(&header, 0, sizeof(header));