From: Sherry Sun sherry.sun@nxp.com
commit dfc6014e3b60713f375d0601d7549eed224c4615 upstream.
handle_error() currently calls snprintf() a couple of times in succession to output the message for a CE/UE, therefore overwriting each part of the message which was formatted with the previous snprintf() call. As a result, only the part of the message from the last snprintf() call will be printed.
The simplest and most effective way to fix this problem is to combine the whole string into one which to supply to a single snprintf() call.
[ bp: Massage. ]
Fixes: b500b4a029d57 ("EDAC, synopsys: Add ECC support for ZynqMP DDR controller") Signed-off-by: Sherry Sun sherry.sun@nxp.com Signed-off-by: Borislav Petkov bp@suse.de Reviewed-by: James Morse james.morse@arm.com Cc: Manish Narani manish.narani@xilinx.com Link: https://lkml.kernel.org/r/1582792452-32575-1-git-send-email-sherry.sun@nxp.c... Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
--- drivers/edac/synopsys_edac.c | 22 +++++++--------------- 1 file changed, 7 insertions(+), 15 deletions(-)
--- a/drivers/edac/synopsys_edac.c +++ b/drivers/edac/synopsys_edac.c @@ -479,20 +479,14 @@ static void handle_error(struct mem_ctl_ pinf = &p->ceinfo; if (!priv->p_data->quirks) { snprintf(priv->message, SYNPS_EDAC_MSG_SIZE, - "DDR ECC error type:%s Row %d Bank %d Col %d ", - "CE", pinf->row, pinf->bank, pinf->col); - snprintf(priv->message, SYNPS_EDAC_MSG_SIZE, - "Bit Position: %d Data: 0x%08x\n", + "DDR ECC error type:%s Row %d Bank %d Col %d Bit Position: %d Data: 0x%08x", + "CE", pinf->row, pinf->bank, pinf->col, pinf->bitpos, pinf->data); } else { snprintf(priv->message, SYNPS_EDAC_MSG_SIZE, - "DDR ECC error type:%s Row %d Bank %d Col %d ", - "CE", pinf->row, pinf->bank, pinf->col); - snprintf(priv->message, SYNPS_EDAC_MSG_SIZE, - "BankGroup Number %d Block Number %d ", - pinf->bankgrpnr, pinf->blknr); - snprintf(priv->message, SYNPS_EDAC_MSG_SIZE, - "Bit Position: %d Data: 0x%08x\n", + "DDR ECC error type:%s Row %d Bank %d Col %d BankGroup Number %d Block Number %d Bit Position: %d Data: 0x%08x", + "CE", pinf->row, pinf->bank, pinf->col, + pinf->bankgrpnr, pinf->blknr, pinf->bitpos, pinf->data); }
@@ -509,10 +503,8 @@ static void handle_error(struct mem_ctl_ "UE", pinf->row, pinf->bank, pinf->col); } else { snprintf(priv->message, SYNPS_EDAC_MSG_SIZE, - "DDR ECC error type :%s Row %d Bank %d Col %d ", - "UE", pinf->row, pinf->bank, pinf->col); - snprintf(priv->message, SYNPS_EDAC_MSG_SIZE, - "BankGroup Number %d Block Number %d", + "DDR ECC error type :%s Row %d Bank %d Col %d BankGroup Number %d Block Number %d", + "UE", pinf->row, pinf->bank, pinf->col, pinf->bankgrpnr, pinf->blknr); }