Commit c274d1f8 authored Apr 27, 2020 by Gustavo A. R. Silva Committed by Greg Kroah-Hartman Nov 01, 2020

mtd: lpddr: Fix bad logic in print_drs_error



commit 1c9c02bb22684f6949d2e7ddc0a3ff364fd5a6fc upstream.

Update logic for broken test. Use a more common logging style.

It appears the logic in this function is broken for the
consecutive tests of

        if (prog_status & 0x3)
                ...
        else if (prog_status & 0x2)
                ...
        else (prog_status & 0x1)
                ...

Likely the first test should be

        if ((prog_status & 0x3) == 0x3)

Found by inspection of include files using printk.

Fixes: eb3db275 ("[MTD] LPDDR PFOW definition")
Cc: stable@vger.kernel.org
Reported-by: Joe Perches <joe@perches.com>
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Acked-by: Miquel Raynal <miquel.raynal@bootlin.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/3fb0e29f5b601db8be2938a01d974b00c8788501.1588016644.git.gustavo@embeddedor.com


Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

parent bc67eeb9

include/linux/mtd/pfow.h

+1 −1

Original line number	Diff line number	Diff line
		@@ -128,7 +128,7 @@ static inline void print_drs_error(unsigned dsr)

		if (!(dsr & DSR_AVAILABLE))
		printk(KERN_NOTICE"DSR.15: (0) Device not Available\n");
		if (prog_status & 0x03)
		if ((prog_status & 0x03) == 0x03)
		printk(KERN_NOTICE"DSR.9,8: (11) Attempt to program invalid "
		"half with 41h command\n");
		else if (prog_status & 0x02)