diff options
Diffstat (limited to 'target/linux/generic/patches-3.3/048-spi-Dont-call-prepare-unprepare-transfer-if-not-popu.patch')
| -rw-r--r-- | target/linux/generic/patches-3.3/048-spi-Dont-call-prepare-unprepare-transfer-if-not-popu.patch | 39 |
1 files changed, 0 insertions, 39 deletions
diff --git a/target/linux/generic/patches-3.3/048-spi-Dont-call-prepare-unprepare-transfer-if-not-popu.patch b/target/linux/generic/patches-3.3/048-spi-Dont-call-prepare-unprepare-transfer-if-not-popu.patch deleted file mode 100644 index deef32e..0000000 --- a/target/linux/generic/patches-3.3/048-spi-Dont-call-prepare-unprepare-transfer-if-not-popu.patch +++ /dev/null @@ -1,39 +0,0 @@ -From 7dfd2bd70228d1f8d468d58cb3d12ecd618479ed Mon Sep 17 00:00:00 2001 -From: Shubhrajyoti D <shubhrajyoti@ti.com> -Date: Thu, 10 May 2012 19:20:41 +0530 -Subject: [PATCH] spi: Dont call prepare/unprepare transfer if not populated - -Currently the prepare/unprepare transfer are called unconditionally. -The assumption is that every driver using the spi core queue infrastructure -has to populate the prepare and unprepare functions. This encourages -drivers to populate empty functions to prevent crashing. -This patch prevents the call to prepare/unprepare if not populated. - -Signed-off-by: Shubhrajyoti D <shubhrajyoti@ti.com> -Acked-by: Linus Walleij <linus.walleij@linaro.org> -[grant.likely: fix whitespace defect] -Signed-off-by: Grant Likely <grant.likely@secretlab.ca> ---- - drivers/spi/spi.c | 4 ++-- - 1 files changed, 2 insertions(+), 2 deletions(-) - ---- a/drivers/spi/spi.c -+++ b/drivers/spi/spi.c -@@ -530,7 +530,7 @@ static void spi_pump_messages(struct kth - /* Lock queue and check for queue work */ - spin_lock_irqsave(&master->queue_lock, flags); - if (list_empty(&master->queue) || !master->running) { -- if (master->busy) { -+ if (master->busy && master->unprepare_transfer_hardware) { - ret = master->unprepare_transfer_hardware(master); - if (ret) { - dev_err(&master->dev, -@@ -559,7 +559,7 @@ static void spi_pump_messages(struct kth - master->busy = true; - spin_unlock_irqrestore(&master->queue_lock, flags); - -- if (!was_busy) { -+ if (!was_busy && master->prepare_transfer_hardware) { - ret = master->prepare_transfer_hardware(master); - if (ret) { - dev_err(&master->dev, |