FAILED: patch "[PATCH] tpm/tpm_i2c_atmel: Return -E2BIG when the transfer is" failed to apply to 4.19-stable tree

The patch below does not apply to the 4.19-stable tree.
If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <[email protected]>.

thanks,

greg k-h

------------------ original commit in Linus's tree ------------------

From 442601e87a4769a8daba4976ec3afa5222ca211d Mon Sep 17 00:00:00 2001
From: Jarkko Sakkinen <[email protected]>
Date: Fri, 8 Feb 2019 18:30:59 +0200
Subject: [PATCH] tpm/tpm_i2c_atmel: Return -E2BIG when the transfer is
incomplete

Return -E2BIG when the transfer is incomplete. The upper layer does not retry, so not doing that is incorrect behaviour.

index 32a8e27c5382..cc4e642d3180 100644
@@ -69,6 +69,10 @@ static int i2c_atmel_send(struct tpm_chip *chip, u8 *buf, size_t len)
 	if (status < 0)
 		return status;
 
+	/* The upper layer does not support incomplete sends. */
+	if (status != len)
+		return -E2BIG;
+
 	return 0;
 }
 

Also for this:

$ git checkout v4.19.35
Previous HEAD position was 84df9525b0c2 Linux 4.19
HEAD is now at 4b0e041c9dad Linux 4.19.35

$ git am -3 ~/Desktop/0001-tpm-tpm_i2c_atmel-Return-E2BIG-when-the-transfer-is-.patch
Applying: tpm/tpm_i2c_atmel: Return -E2BIG when the transfer is incomplete

/Jarkko