Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 093a89d4 authored by Alan Tull's avatar Alan Tull Committed by Greg Kroah-Hartman
Browse files

fpga: fpga-region: comment on fpga_region_program_fpga locking 



Add a comment to the header of fpga_region_program_fpga()
regarding locking of the bridges.

Signed-off-by: default avatarAlan Tull <atull@kernel.org>
Signed-off-by: default avatarMoritz Fischer <mdf@kernel.org>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 88fb3a00

drivers/fpga/fpga-region.c

+5 −0
Original line number Diff line number Diff line
@@ -95,6 +95,11 @@ static void fpga_region_put(struct fpga_region *region) 
 * fpga_region_program_fpga - program FPGA

 * @region: FPGA region

 * Program an FPGA using fpga image info (region->info).

 * If the region has a get_bridges function, the exclusive reference for the

 * bridges will be held if programming succeeds.  This is intended to prevent

 * reprogramming the region until the caller considers it safe to do so.

 * The caller will need to call fpga_bridges_put() before attempting to

 * reprogram the region.

 * Return 0 for success or negative error code.

 */

int fpga_region_program_fpga(struct fpga_region *region)