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-rw-r--r--drivers/hid/hid-core.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c
index 10a2c08..da52279 100644
--- a/drivers/hid/hid-core.c
+++ b/drivers/hid/hid-core.c
@@ -1253,7 +1253,8 @@ EXPORT_SYMBOL_GPL(hid_output_report);
static int hid_report_len(struct hid_report *report)
{
- return ((report->size - 1) >> 3) + 1 + (report->id > 0) + 7;
+ /* equivalent to DIV_ROUND_UP(report->size, 8) + !!(report->id > 0) */
+ return ((report->size - 1) >> 3) + 1 + (report->id > 0);
}
/*
@@ -1266,7 +1267,7 @@ u8 *hid_alloc_report_buf(struct hid_report *report, gfp_t flags)
* of implement() working on 8 byte chunks
*/
- int len = hid_report_len(report);
+ int len = hid_report_len(report) + 7;
return kmalloc(len, flags);
}
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