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wil6210: allow empty WMI commands in debugfs wmi_send

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There are many valid WMI commands with only header without any
additional payload. Such WMI commands could not be sent using
the debugfs wmi_send facility. Fix the code to allow sending
of such commands.

Signed-off-by: Lior David <qca_liord@qca.qualcomm.com>
Signed-off-by: Maya Erez <qca_merez@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
This commit is contained in:
Lior David 2016-03-21 22:01:11 +02:00 committed by Kalle Valo
parent 7b9bc799a4
commit 69218a4800
1 changed files with 2 additions and 2 deletions
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4
drivers/net/wireless/ath/wil6210/debugfs.c
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@ -832,7 +832,7 @@ static ssize_t wil_write_file_wmi(struct file *file, const char __user *buf,
u16 cmdid;
int rc, rc1;
if (cmdlen <= 0)
if (cmdlen < 0)
return -EINVAL;
wmi = kmalloc(len, GFP_KERNEL);
@ -845,7 +845,7 @@ static ssize_t wil_write_file_wmi(struct file *file, const char __user *buf,
return rc;
}
cmd = &wmi[1];
cmd = (cmdlen > 0) ? &wmi[1] : NULL;
cmdid = le16_to_cpu(wmi->command_id);
rc1 = wmi_send(wil, cmdid, cmd, cmdlen);