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HID: fix non-atomic allocation in hid_input_report

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'interrupt' variable can't be used to safely determine whether
we are running in atomic context or not, as we might be called from
during control transfer completion through hid_ctrl() in atomic
context with interrupt == 0.

Reported-by: Jens Axboe <jens.axboe@oracle.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
This commit is contained in:
Jiri Kosina 2009-09-15 11:59:49 +02:00
parent 1824090496
commit d1ff65226c
1 changed files with 1 additions and 2 deletions
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3
drivers/hid/hid-core.c
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@ -1089,8 +1089,7 @@ int hid_input_report(struct hid_device *hid, int type, u8 *data, int size, int i
return -1; return -1;
} }
buf = kmalloc(sizeof(char) * HID_DEBUG_BUFSIZE, buf = kmalloc(sizeof(char) * HID_DEBUG_BUFSIZE, GFP_ATOMIC);
interrupt ? GFP_ATOMIC : GFP_KERNEL);
if (!buf) { if (!buf) {
report = hid_get_report(report_enum, data); report = hid_get_report(report_enum, data);