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30 lines
1.2 KiB
Diff
30 lines
1.2 KiB
Diff
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From e0ecfaf1abfd5ef63ceec7606352020a80a2742b Mon Sep 17 00:00:00 2001
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From: Dave Stevenson <dave.stevenson@raspberrypi.com>
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Date: Mon, 18 Dec 2023 11:49:36 +0000
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Subject: [PATCH] input: edt-ft5x06: Correct prefix length in snprintf
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snprintf takes the length of the array that we can print into,
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and has to fit the NULL terminator in there too.
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Printing the prefix is generally "12-3456 " which is 8 desired
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characters (the length of EDT_NAME_PREFIX_LEN) and the NULL.
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The space is therefore being truncated to fit the NULL in.
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Increase the length snprintf is allowed to use.
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Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
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---
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drivers/input/touchscreen/edt-ft5x06.c | 2 +-
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1 file changed, 1 insertion(+), 1 deletion(-)
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--- a/drivers/input/touchscreen/edt-ft5x06.c
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+++ b/drivers/input/touchscreen/edt-ft5x06.c
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@@ -966,7 +966,7 @@ static int edt_ft5x06_ts_identify(struct
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char *model_name = tsdata->name;
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char *fw_version = tsdata->fw_version;
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- snprintf(model_name, EDT_NAME_PREFIX_LEN, "%s ", dev_name(&client->dev));
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+ snprintf(model_name, EDT_NAME_PREFIX_LEN + 1, "%s ", dev_name(&client->dev));
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model_name += strlen(model_name);
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/* see what we find if we assume it is a M06 *
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