Patch "HID: i2c-hid: fix format string mismatch" has been added to the 4.9-stable tree

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This is a note to let you know that I've just added the patch titled

    HID: i2c-hid: fix format string mismatch

to the 4.9-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     hid-i2c-hid-fix-format-string-mismatch.patch
and it can be found in the queue-4.9 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.



commit ea56e386c4b47eadc9035eca41706320b8d2af68
Author: Arnd Bergmann <arnd@xxxxxxxx>
Date:   Fri May 14 15:58:50 2021 +0200

    HID: i2c-hid: fix format string mismatch
    
    [ Upstream commit dc5f9f55502e13ba05731d5046a14620aa2ff456 ]
    
    clang doesn't like printing a 32-bit integer using %hX format string:
    
    drivers/hid/i2c-hid/i2c-hid-core.c:994:18: error: format specifies type 'unsigned short' but the argument has type '__u32' (aka 'unsigned int') [-Werror,-Wformat]
                     client->name, hid->vendor, hid->product);
                                   ^~~~~~~~~~~
    drivers/hid/i2c-hid/i2c-hid-core.c:994:31: error: format specifies type 'unsigned short' but the argument has type '__u32' (aka 'unsigned int') [-Werror,-Wformat]
                     client->name, hid->vendor, hid->product);
                                                ^~~~~~~~~~~~
    
    Use an explicit cast to truncate it to the low 16 bits instead.
    
    Fixes: 9ee3e06610fd ("HID: i2c-hid: override HID descriptors for certain devices")
    Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>
    Reviewed-by: Nathan Chancellor <nathan@xxxxxxxxxx>
    Signed-off-by: Jiri Kosina <jkosina@xxxxxxx>
    Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>

diff --git a/drivers/hid/i2c-hid/i2c-hid-core.c b/drivers/hid/i2c-hid/i2c-hid-core.c
index 606fd875740c..800c477dd076 100644
--- a/drivers/hid/i2c-hid/i2c-hid-core.c
+++ b/drivers/hid/i2c-hid/i2c-hid-core.c
@@ -1157,8 +1157,8 @@ static int i2c_hid_probe(struct i2c_client *client,
 	hid->vendor = le16_to_cpu(ihid->hdesc.wVendorID);
 	hid->product = le16_to_cpu(ihid->hdesc.wProductID);
 
-	snprintf(hid->name, sizeof(hid->name), "%s %04hX:%04hX",
-		 client->name, hid->vendor, hid->product);
+	snprintf(hid->name, sizeof(hid->name), "%s %04X:%04X",
+		 client->name, (u16)hid->vendor, (u16)hid->product);
 	strlcpy(hid->phys, dev_name(&client->dev), sizeof(hid->phys));
 
 	ihid->quirks = i2c_hid_lookup_quirk(hid->vendor, hid->product);



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