staging: ft1000: change values of status return variable in write_dpram32_and_check

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The ft1000 usb driver ignores expected Linux error codes, and uses two
values defined in ft1000_usb.h: STATUS_SUCCESS 0, and STATUS_FAILURE
0x1001; and sometimes -1. This patch changes the return value of the
function write_dpram_32_and check to 0 or -EREMOTEIO, respectively. The
relevant change was made in the helper function check_buffers (which is
only called from write_dpram32_and_check); it now returns 0 on success
and -EREMOTEIO on failure, and this is allowed to propagate through
write_dpram32_and_check. Assignments to the return variable status that
are no longer needed were removed as well. In one function up the call
chain, dsp_reload in ft1000_hw.c, the status variable was changed from
u16 to int to avoid collecting a signed value in an unsigned variable.

Signed-off-by: Kelley Nielsen <kelleynnn@gmail.com>
Suggested-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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This commit is contained in:

Kelley Nielsen 2013-10-29 14:54:31 -07:00 • committed by Greg Kroah-Hartman

parent 2fef7e13c8

commit 43fc69b112

2 changed files with 4 additions and 7 deletions

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9

drivers/staging/ft1000/ft1000-usb/ft1000_download.c

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2

drivers/staging/ft1000/ft1000-usb/ft1000_hw.c

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