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staging: unisys: remove channel.h double negative comparison 

This patch removes the double negative comparisons for function
readb.

Signed-off-by: Erik Arfvidson <erik.arfvidson@unisys.com>
Signed-off-by: David Kershner <david.kershner@unisys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Erik Arfvidson 2016-03-24 09:18:09 -04:00 committed by Greg Kroah-Hartman
parent c9493bd6c9
commit 800aecc30b
1 changed files with 3 additions and 3 deletions
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6
drivers/staging/unisys/include/channel.h
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@ -411,7 +411,7 @@ spar_channel_client_acquire_os(void __iomem *ch, u8 *id)
mb(); /* required for channel synch */
}
if (readl(&hdr->cli_state_os) == CHANNELCLI_OWNED) {
if (readb(&hdr->cli_error_os) != 0) {
if (readb(&hdr->cli_error_os)) {
/* we are in an error msg throttling state;
* come out of it
*/
@ -459,7 +459,7 @@ spar_channel_client_acquire_os(void __iomem *ch, u8 *id)
mb(); /* required for channel synch */
return 0;
}
if (readb(&hdr->cli_error_os) != 0) {
if (readb(&hdr->cli_error_os)) {
/* we are in an error msg throttling state; come out of it */
pr_info("%s Channel OS client acquire now successful\n", id);
writeb(0, &hdr->cli_error_os);
@ -472,7 +472,7 @@ spar_channel_client_release_os(void __iomem *ch, u8 *id)
{
struct channel_header __iomem *hdr = ch;
if (readb(&hdr->cli_error_os) != 0) {
if (readb(&hdr->cli_error_os)) {
/* we are in an error msg throttling state; come out of it */
pr_info("%s Channel OS client error state cleared\n", id);
writeb(0, &hdr->cli_error_os);