[PATCH v3 0/2] dmaengine: ti: k3-udma: Fix NULL pointer dereference error

[Kishon Vijay Abraham I <kishon@ti.com>]

NULL pointer de-reference error was observed when all the PCIe endpoint
functions (22 function in J721E) request a DMA channel. The issue was
specfically observed when using mem-to-mem copy.

Changes from v2:
1) Fix commit subject and commit log to mention bchan/rchan/tchan to NULL
   suggested by Peter.

Changes from v1:
1) Split the patch for BCDMA and PKTDMA separately
2) Fixed the return value of udma_get_rflow() to 0.
3) Removed the fixes tag as the patches does not directly apply to the
commits.

v1 => https://lore.kernel.org/r/20210209090036.30832-1-kishon@ti.com
v2 => https://lore.kernel.org/r/20211027055625.11150-1-kishon@ti.com

Kishon Vijay Abraham I (2):
  dmaengine: ti: k3-udma: Set bchan to NULL if a channel request fail
  dmaengine: ti: k3-udma: Set rchan/tchan to NULL if a channel request
    fail

 drivers/dma/ti/k3-udma.c | 32 ++++++++++++++++++++++++++------
 1 file changed, 26 insertions(+), 6 deletions(-)

-- 
2.17.1