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authorBen Hutchings <ben@decadent.org.uk>2013-12-28 19:53:59 +0400
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2014-01-09 08:29:19 +0400
commit08da2012e0bb0f3f1422cce3f76c36a90da366b5 (patch)
tree62ebb93c62391db44bc3f29db6c34667df6fddbc
parent174be70b638ceb1038f466b5ca014f6b1d9c8a59 (diff)
downloadlinux-08da2012e0bb0f3f1422cce3f76c36a90da366b5.tar.xz
firmware_class: Fix the file size check
We expect to read firmware blobs with a single call to kernel_read(), which returns int. Therefore the size must be within the range of int, not long. Signed-off-by: Ben Hutchings <ben@decadent.org.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-rw-r--r--drivers/base/firmware_class.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/base/firmware_class.c b/drivers/base/firmware_class.c
index 54592e66551f..8a97ddfa6122 100644
--- a/drivers/base/firmware_class.c
+++ b/drivers/base/firmware_class.c
@@ -280,21 +280,21 @@ module_param_string(path, fw_path_para, sizeof(fw_path_para), 0644);
MODULE_PARM_DESC(path, "customized firmware image search path with a higher priority than default path");
/* Don't inline this: 'struct kstat' is biggish */
-static noinline_for_stack long fw_file_size(struct file *file)
+static noinline_for_stack int fw_file_size(struct file *file)
{
struct kstat st;
if (vfs_getattr(&file->f_path, &st))
return -1;
if (!S_ISREG(st.mode))
return -1;
- if (st.size != (long)st.size)
+ if (st.size != (int)st.size)
return -1;
return st.size;
}
static int fw_read_file_contents(struct file *file, struct firmware_buf *fw_buf)
{
- long size;
+ int size;
char *buf;
int rc;