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-rw-r--r--fs/sysfs/file.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/fs/sysfs/file.c b/fs/sysfs/file.c
index 27d1785b7644..4045bdcc4b33 100644
--- a/fs/sysfs/file.c
+++ b/fs/sysfs/file.c
@@ -119,7 +119,11 @@ static int fill_read_buffer(struct dentry * dentry, struct sysfs_buffer * buffer
119 119
120 sysfs_put_active_two(attr_sd); 120 sysfs_put_active_two(attr_sd);
121 121
122 BUG_ON(count > (ssize_t)PAGE_SIZE); 122 /*
123 * The code works fine with PAGE_SIZE return but it's likely to
124 * indicate truncated result or overflow in normal use cases.
125 */
126 BUG_ON(count >= (ssize_t)PAGE_SIZE);
123 if (count >= 0) { 127 if (count >= 0) {
124 buffer->needs_read_fill = 0; 128 buffer->needs_read_fill = 0;
125 buffer->count = count; 129 buffer->count = count;