bus: mhi: host: Free mhi_buf vector inside mhi_alloc_bhie_table()

mhi_alloc_bhie_table() starts by allocating a vector of struct mhi_buf
then it allocates a DMA buffer for each element. If allocation fails,
it will free the allocated DMA buffers, but it neglects freeing the
mhi_buf vector.

Avoid memory leaks by freeing the mhi_buf vector on error.

Fixes: 3000f85 ("bus: mhi: core: Add support for basic PM operations")
Signed-off-by: Youssef Samir <[email protected]>
Reviewed-by: Jeffrey Hugo <[email protected]>
Reviewed-by: Manivannan Sadhasivam <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Manivannan Sadhasivam <[email protected]>

Author: Youssef Samir

drivers/bus/mhi/host/boot.c

@@ -357,6 +357,7 @@ int mhi_alloc_bhie_table(struct mhi_controller *mhi_cntrl,
 	for (--i, --mhi_buf; i >= 0; i--, mhi_buf--)
 		dma_free_coherent(mhi_cntrl->cntrl_dev, mhi_buf->len,
 				  mhi_buf->buf, mhi_buf->dma_addr);
+	kfree(img_info->mhi_buf);
 
 error_alloc_mhi_buf:
 	kfree(img_info);