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The new driver incorrectly unwinds after errors, as clang points out:
drivers/dma-buf/st-dma-resv.c:295:7: error: variable 'i' is used uninitialized whenever 'if' condition is true [-Werror,-Wsometimes-uninitialized]
if (r) {
^
drivers/dma-buf/st-dma-resv.c:336:9: note: uninitialized use occurs here
while (i--)
^
drivers/dma-buf/st-dma-resv.c:295:3: note: remove the 'if' if its condition is always false
if (r) {
^~~~~~~~
drivers/dma-buf/st-dma-resv.c:288:6: error: variable 'i' is used uninitialized whenever 'if' condition is true [-Werror,-Wsometimes-uninitialized]
if (r) {
^
drivers/dma-buf/st-dma-resv.c:336:9: note: uninitialized use occurs here
while (i--)
^
drivers/dma-buf/st-dma-resv.c:288:2: note: remove the 'if' if its condition is always false
if (r) {
^~~~~~~~
drivers/dma-buf/st-dma-resv.c:280:10: note: initialize the variable 'i' to silence this warning
int r, i;
^
= 0
Skip cleaning up the bits that have not been allocated at this point.
Fixes: 1d51775cd3f5 ("dma-buf: add dma_resv selftest v4")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20211026083448.3471055-1-arnd@kernel.org
Signed-off-by: Christian König <christian.koenig@amd.com>
55d5e4f98f